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Have you recently added to your boat’s electronics inventory or have you installed a mega-watt stereo system and lights on your boat? Have you added to your vessel’s battery bank and now finding that your batteries are not getting charged fully, or that they take an extremely long time to achieve a full charge? If so, consider the best approach to upgrading your electrical system-increase your electrical production! The alternators supplied with most small marine engines – whether gas or diesel – are usually 35 to 60 amp automotive alternators. Late model marine engines could have 70 to 80 amp automotive alternators. A heavy duty marine high output alternator produces more power at lower rpm, instead of high output at high rpm- freeway speeds for an automobile.
BALMAR produces a series of high output marine alternators. The most popular for small marine gas and diesel engines is the BALMAR 6-series alternator, which is available in outputs of 70, 100, 120 and 150 amps. If your engine is equipped with a single 3/8″ wide alternator belt you will be restricted to a maximum of 70 amps. A 1/2” belt will work for up to a 100 amp alternator. If your engine is equipped with dual v-belts or a single flat belt, you could use the 120 or 150 amp 6-series alternator. Even if your marine engine is equipped with a 55 amp alternator, which is a commonly used size, the 70 amp version of the 6-series will produce far more power even though it is rated at only slightly more than your current alternator because it is producing higher output at lower engine revolutions.
The 6-series alternator is available in a variety of mounting styles to fit most marine gas or two to four cylinder marine diesel engines. The BALMAR 6-series alternators have a long history of providing reliable power and are found on sailing and power vessels around the world. The compact size of this alternator often is smaller than the lower output alternator it replaces. This alternator has a built-in voltage regulator, but if your boat has multiple batteries or battery banks, a BALMAR external voltage regulator must be used for maximum charging efficiency. This also gives the benefit of redundancy, if one regulator fails, a flip of a switch can enable the other regulator.
BALMAR produces marine high output alternators from 60 to 310 amp outputs. The lighter duty 6 and 7 series are built for marine diesels such as Yanmar 2, 3 and 4 cylinder engines and gasoline marine engines. The heavy duty 94 and 95 series alternators are for engines such as the popular Cummins 6BT5.9L. The extreme duty 97 and 98 series, with output up to 310 amps, are for very high output marine applications.
There are BALMAR alternator and regulator kits available, with different kits suitable for a variety of engine makes and models. The kits are available with either BALMAR’s top of the line Max Charge MC-614, or the BALMAR high performance ARS-5 regulator. The kits also include temperature sensors for both the alternator and battery, which help the regulator determine the appropriate steps in the charge cycle, and assures that the batteries are charged quickly and safely. The BALMAR 6-series alternator and a BALMAR external regulator is the best, easy to install addition to maximize your vessel’s electrical power needs.
Marine Engine Mounts have come a long way from the days when an engine was welded or bolted directly to the engine bed or stringer. When this was a common practice, the engines were huge, heavy, low rpm engines. These engines were so heavy and slow turning they absorbed whatever vibration that might have been generated. Today’s modern gasoline and diesel engines are much lighter in weight and operate at considerably higher rpm’s than older generation engines. This change is largely due to the never-ending race for more horsepower.
In order to develop more horsepower and efficiency, and also meet the new, more stringent EPA requirements, lighter weight, high rpm engines are becoming the industry standard. The lighter mass of these engines does not allow them to absorb the harmonic vibrations that are found in all engines at various operating speeds, so vibration isolating engine mounts are needed. Also, as the engine weights decrease and power (thrust) increases, the functions an engine mount must perform become much more complex.
An engine vibrates in three different fields of motion; fore and aft (longitudinal), side to side (lateral) and up and down (vertical). All of these motions are controlled by the engine mount but not always to the same degree for each motion. Most engine mounts are designed to severely restrict longitudinal, fore and aft thrust and vibration yet allow some lateral and vertical motion to dissipate vibrations. A plain rubber doughnut mount will absorb vibration but in a marine engine, you also have the forward and reverse thrust (shear) generated by the propeller that must be controlled by the engine mount.
There are a wide variety of mount styles to choose from. Smaller diesels with one, two and three cylinders are more apt to use rubber doughnut style compression mounts which allow the engine to move the same in all directions. These mounts are built fairly stiff to control engine vibration and absorb propeller thrust. Generally, compression mounts are shorter and can fit in many applications. Find the correct engine mount with the engine mount cross-reference guide.
On larger, more powerful engines, propeller thrust is much greater so a shear type mount is used to control the thrust but it allows for greater lateral and vertical movement to isolate engine vibrations. This means the mount can be softer for better vibration isolation but is preloaded for superior control of longitudinal motion which also helps maintain better shaft and engine alignment.
If too stiff a mount is selected, the vibration control is minimized which means that engine vibration will be transmitted directly into the boat hull which will act much like a big loudspeaker with unpleasant results for the boat’s occupants. Proper sizing is very important to prevent this from happening.
One of the most common installation errors occurs when the engine mounts are installed on the engine bed improperly. It is imperative that the mounts are perpendicular to the engine’s crankshaft; so that when the mount stud goes through the engine bracket it is not pulled to the side, or fore and aft, preloading the mount. Also, the bottom adjusting nut on any mount should not be more than 3/8 of an inch off the base of the stud. Raising the engine too high greatly increases the engine mounts dynamic load and the mount will not function as designed. It is best to put a shim under the mount rather than raise the nut too high.
Mounts do age, fatigue and even fail, so periodic replacement is a good preventative maintenance measure. Some engine manufacturers recommend mount replacement every five to seven years. If you are replacing a broken mount, it is best to replace all the mounts due to fatigue caused when the intact mounts take on the additional load from the broken mount. If you choose not to do this be sure to replace the mount with the exact same mount. Using a different style or weight mount could induce failure of the old mounts. Too stiff a mount will break when used with softer mounts because it will not move as much as the softer and older mounts.
Mounts with cast aluminum bases are preferable because they offer better corrosion resistance. Steel components of the mount are usually zinc plated and passivated to resist corrosion. Some mounts offer a metal shield over the rubber damper to protect it from petroleum contaminants. Also, some mounts are mechanically captive which means the stud will not pull out of the mount in roll over or severe impact situations. If your vessel strikes a submerged object that damages the propeller or shaft, be sure to closely inspect your mounts for damage or breakage. This is sometimes difficult to determine so use a bright light and a mirror to check all the way around the mount for cracks, broken studs or a displaced rubber damper in the mount. It is not uncommon to find broken mounts on recently surveyed vessels so it pays to periodically check your mounts and replace them if they are fatigued or damaged.
You can enhance the life of your mounts by keeping them clean and free of corrosion and oil coatings. To ensure that you get the marine engine mounts best suited to your application, always follow the engine mount manufacturer’s guidelines.
Marine control cables for both throttle and shift are never a problem – until they give you problems. Depending on the vintage of your boat, you may have an old Morse cable or an early Teleflex cable. Your original cable may have lasted for 20+ years (and your new one should last longer) but first you need to figure out what to get to replace that throttle or shift cable. Also note, if one is sticking, the other will follow. Replace both cables at the same time and you will be able to go another 20 years+.
Identifying your cable and what you need:
Measuring your cable:
Measure your cable from tip to tip and then round up to the next foot. Replacement control cables are sold in one foot increments. OMC and Mercury cables tend to use specialized ends. Nearly every other manufacturer of outboards, sterndrives and inboard engines uses 33C style control cables. The most common throttle and shift cables on a sailboat are the 33C.
All throttle, shift and control cables are considered as replacement cables. You will need to know how long your cable is and the manufacturer of your controls and engine.
|Engine Application||Teleflex Cable||Uflex||Glendinning||Felstead||Historical Part Numbers|
|Pre-1979 OMC / BRP / Evinrude / Johnson||CC170||C4||N/A||N/A||CC170, Morse TYPE O 48296|
|1979 to Date OMC / BRP / Evinrude / Johnson||CCX205||C14||A7120||N/A||CC205, CC479, Morse TYPE OS 302029|
|For (2003 to current) 4000 Mercury Gen II||CCX189||C36, MACHC36||A7140||N/A||CC189|
|For 600A Mercury Gen I||CCX179||C5, MACH5||A7130||N/A||CC179|
|Mariner / Mercruiser / Mercury||CCX630||MACH5, C16||A7110||N/A||CC210, CC630, Mercury 3600|
|Honda||CCX633||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Suzuki||CCX633||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Yamaha||CCX633||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Tohatsu||CCX633||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Nissan||CCX633||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Mercury Sport Jet||CC213||C22, C23BC||N/A||N/A||N/A|
|Universal 33C||CCX630||C2, C8, MACHZero||A7100||33C||CC172, 33C, Morse 301947-003|
|Heavy Duty Applications – 40 and 60 Series||CCX430, CCX433, CCX640, CCX643, 40BC||C22, C23BC||A7200, A7300, A7210, A7310||Universal 43C, 43 BC, 64C, 64BC, 4300/43, 6400/64||Universal 43C, 43BC, 64C, 64BC, 4300/43, 6400/64, Morse 65835-003, Morse 46348-003, Morse 065885-003, Morse 304262-004, Morse 304263-004|
|Volvo Using OMC Top Mount Controls||CC214||C25||N/A||N/A||CC214, Morse TYPE OC 310048|
When you need 110 volt power, but you live “off the grid” on a boat, RV, in a cabin or due to emergency circumstances; an inverter can turn a battery (12 volts, direct current) into 110 volts (household alternating current) of useful power. Inverters and Inverter / Chargers are manufactured by industry respected names like Magnum Energy , Go Power! , Xantrex Technology and others, There are several considerations when choosing an inverter.
Your Power Usage – most tools, appliances and lights are rated for power draw in the form of watts. A 60 watt bulb uses 60 watts! If an item is listed in “amps”, then multiply the amps draw (rated at 110 volts) by 110. A motor that requires a 12 amp start up would use approximately 1320 watts.
Your Power Supplied – you need to have a battery supply that can keep up with your needs. The longer you want to run without charging and the higher the watt usage, the more batteries you need.
Inverters are primarily chosen on 3 criteria:
Inverters are available from 300 watts to over 4000 watts. The choice for wattage is dependent upon usage and the ability to draw on a battery reserve to meet the power demand. Any inverter over 300 watts should be connected as directly to the battery as is possible. Remember, motors at start up may use 20-50% more power than is needed for running operation.
300 – 500 watts: For a single household appliance, TVs (up to 27″), VCR, desktop computers, other mobile office equipment. Most of these connect via a 12-Volt vehicle plug. Great for keeping up with a laptop, portable TV or other small items when travelling.
600 – 1500 watts: For larger household appliances, large screen TVs, 5-12 amp power tools. Most of these inverters have three or more grounded outlets for powering several products at the same time and are connected directly to the 12-volt battery.
1750 – 2500 watts: For any household appliances, larger power tools, microwave ovens, toasters, and hair dryers. All of these inverters are designed for direct connection to the battery network and can generally supply 1500 watts of continuous power. These may have a charge built in as well as some self monitoring features.
3000+ watts: With output power generally rated at 90% for continuous loads, these inverters can power virtually all household appliances and equipment. For loads of this magnitude, special wiring and battery banks may be required. Most of these large units have chargers to top the batteries built in to them and are self monitoring.
There are two types of sine wave produced by inverters; pure sine wave or modified sine wave. Pure sine wave is a nice smooth sine wave current similar to what you get when you plug into your home outlet. Modified sine wave is a slightly ‘square’ or boxed off wave that is cheaper to set up in the world of electronics. Most items will run from well to ‘ok’ on a modified sine wave, but there are some exceptions where the electronics or motor are a bit fussier.
Lastly, if you have your inverter / battery set up so that you can recharge frequently as is the case with a boat, RV or backup power source for emergencies, an inverter / charger will work well. When AC power is available, the inverter/charger recharges the supply batteries while also allowing AC power to pass through and power the system AC loads, such as a television set or microwave oven. When AC power is disconnected, the unit inverts DC battery power into AC electricity.
Many boaters and waterfront homes enjoy their own private dock, seawall or raft. Dock ladders offer an increased level of safety by allowing someone who is in the water to get back up onto the dock. For the recreational user, an aluminum dock ladder can allow a user to get from a kayak, dinghy or small boat up onto a dock or pier. Swimmers can get out of the water at a floating dock or raft. Individual requirements and use will determine the choice of ladder style.
Dock / pier / raft ladders can be either fixed, lifting or swinging. Fixed dock ladders cannot be removed or raised out of the water. Lifting and swinging dock ladders are made to be removed from the water in a moments notice. All types of the International Dock Products ladders can be fitted with a quick release bracket for seasonal removal and storage of the entire ladder. The final choice in aluminum dock ladder construction is the width of the rungs; they come in 2″ wide (a bit hard on feet, the original size) and 4″ wide (much more gentle on feet). Beyond the choice of the ladder, it’s longevity is determined by the construction and materials used.
International Dock Products uses the most advanced machinery available to produce a dock ladder that is high quality and built to last. To maintain a quality product from the time it arrives, the aluminum is stored as pipe separation with inside storage. When manufacturing the marine dock ladders, the cut, cleaned and prepared parts are superbly welded for a long service lifetime. Currently the robotic Motoman (the same robots used to build cars in Detroit and for 230,000 operations) are welding the aluminum tubing and steps to the highest level with precise, identical welds. International Dock Products dock ladders are made in the USA of marine grade T5-6063 aluminum which is suitable for salt, brackish and fresh water applications. Stainless steel ladders must be used in applications with chlorinated water – never use an aluminum ladder.
The two most popular dock ladders are the straight / fixed and the lifting marine ladder. Dock and seawall ladders can be built up to 16-17 step ladders, however 8′ and longer get standoffs for seawall. The single most popular product is the 5 step lift with 4″ treads which is perfect for most rafts and docks.
Although specializing in aluminum dock ladders, International Dock Products ladders have found use for farm lofts, barns, homes and more. When we enquired recently with International Dock Products, they told us that one of the more unusual uses of their products were when an interior designer in Michigan ordered 2 10′ long ladders, powder coated to two specific colors for children’s bedroom lofts.
No matter what type of dock, pier, seawall or raft you have, there is an International Dock Products dock ladders that will work for you. Check out our complete dock ladder selection:
Go2marine can special order a dock ladder for your use.
Replacing Power Trim and Tilt Systems
When replacing your Power Tilt and Trim Motor, first identify what type of Power Tilt and Trim Motor and Pump you have in your boat. There are two basic types of power Trim and Tilt Systems being used in the recreational Boating industry regardless of weather you have an Outboard, Inboard or a Sterndrive.
Some of the older Power Tilt and Trim Systems used an Electric Tilt Motor in combination with a mechanical lifting device. For example, Volvo Penta used a 12-Volt Power Tilt Motor turning a lifting screw on their older Stern Drives. On older OMC Stern Drives, an electric Motor turned a Worm Gear and incorporated a wet clutch pack to Tilt the drive unit as well as lock it into place. The Electric Hydraulic power Trim and Tilt System is more common. This type of system is used on Johnson and Evinrude Outboards, Mercruiser Stern Drives, Mercury Outboards and Volvo Penta Stern Drives. This system consists of two major components; the 12 volt electric Motor with a reservoir, and the Hydraulic Pump or Valve Body.
When experiencing problems with your power Trim and Tilt System, there are a few easy ways to diagnose just what the problem is. Power Trim Motors generally come in two styles. All use a 12 volt D/C reversing Motor. Some Motors have a two wire connection and some Motors have a three wire connection. All power Trim and Tilt Motors come with one blue wire and one green wire. The three wire power Trim and Tilt Motors have an additional Black wire as well. The Black wire works as a Ground on power Trim and Tilt Motors that don’t ground thru the case. When the blue wire is energized it raises the Motor or drive unit up. When the green wire is energized it lowers the drive unit down.
When having a problem first you need to determine weather your problem is with the power Trim and Tilt Motor or the Hydraulic Pump Valve Body assembly. If you attempt to raise the Motor or sterndrive to the up or down position and nothing happens, first check to make sure your Battery is charged and switched on if your boat is equipped with a Battery switch. If you hear a slight clicking noise you have power coming from the switch to the solenoid. The next step is to go directly to the Motor and test it there. First, disconnect the power Trim and Tilt Motor.
Using a jumper wire, apply 12 volts directly to the blue wire if your engine or drive unit is in the down position. It should raise up at this time. If it is in the up position, apply power to the green wire reversing the Motor and lowering the unit. If the Motor runs, you may have a problem with a solenoid or lack of voltage coming from the power Trim and Tilt switch to the solenoid.
If your power Trim Tilt Motor won’t run after this procedure it is time to replace it. Some replacement Power Trim and Tilt Motors will come with a new wiring harness and relay kit to convert your old three wire power Trim and Tilt Motor to a new more powerful two wire Motor. (Tilt and Trim cross-reference)
If your power Trim and Trim Motor is working fine but the engine or drive unit won’t stay Trimmed or bleeds down when in the up position, you most likely have a problem with the Hydraulic pump or Valve Body assembly. In that case it can be removed and rebuilt by a qualified repair facility. Replace the power Trim and Tilt hydraulic pump unit and fill the reservoir with the correct Power Tilt and Trim Fluid per your owner’s manual. Generally, Transmission fluid is not recommended. It can be hard on some seals due to the high amount of detergents. Most power Trim and Tilt units will purge the air from the system just by running the engine or sterndrive up and down two or three times with the vent plug loose.
Now get going on repairing your tilt-n-trim so you can get out and enjoy your boat! If you need any parts, visit us at Go2marine.com, or call toll free 1-800-998-9508.
Article by: Michael Weller
Engine Parts Manager
Go2marine with Solas marine products is offering a drawing for one lucky boater to receive a $500 Gift Card. Enter the Solas Sweepstakes.
Solas manufactures high quality replacement stainless steel or aluminum 3 and 4 blade propellers for outboard and stern-drive marine engines. SOLAS Stainless Steel Propellers feature the industry’s highest percentage of chromium, nickel, and molybdenum. The material resists rust from salt water and increases the stability of the propeller blades. SOLAS uses a state of the art squeeze casting process to make the aluminum propellers stronger and tougher than traditional die cast products.
Sweepstakes ends June 15th, 2011. No purchase nessesary. See details below**
**You must be 18 years or older to enter. No purchase necessary. $500 Gift Card will be issued from a major credit card company. See full sweepstakes rules and details here.
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Lighthouse windlasses are manufactured for nearly any vessel; sail or power. For use on boats from 32′ to 70′. These electric or hydraulic windlasses are built for continuous duty use and are available with nearly any chain, rope rode, chain/rope combination of wildcat /capstan drum combination for chain from 1/4″ to 7/16″ in BBB, HT or PC and 1/2″ to 3/4″ rope rode. Lighthouse windlasses are proudly made in the USA.
Lighthouse windlasses are are rated at continuous duty use, not maximum pull as with most other winch manufacturers. Optional reversing is available without changing motors, and can be added at anytime. This rugged motor should never let you down, but in the unlikely event of an electrical system failure, you will never be stranded, this is the only winch with 3 manual back-ups. Can be tailed just like a sheet winch. Has rapid manual rewind with use of a standard or ratcheting winch handle in capstan end.
The Lighthouse windlassoffers a continuous line pull at 12v (80 amps) – 32v (27 amps) = 1000 lbs. @ 37 fpm, maximum line pull rating depends on available amperage & power supply. This windlass is built to withstand nearly any punishment offered in operation. In manual use, there is a fast rewind socket port & starboard, or an amazing 10,200 lbs. of pull on second speed with only 35lbs hand force. The mechanical portion of the windlass is built to a rugged standard that no other manufacturer matches.
Crab and shrimp pot pullers lead a hard life. Pullers and haulers are one boat part that is exposed to the elements, harsh weather, hard operation usage and general negligence for it’s entire service life. Whether it is a small pocket puller used in an oarlock or a gas or electric pot puller pulling hundreds of pounds, pot pullers must do the work without fail.
There are three main types of pot haulers; manual, electric and gas operated. The choice of this marine part is based on how often you intend to use the hauler (recreational or professional), the weight of the pot and the power source available on-board the vessel.
Manual crab and shrimp pot pullers are great for smaller vessels with limited power and limited use with pot weights less than 100 pounds. The smallest pot puller is designed to be used in a dinghy or rowboats oar lock. The Pocket Puller fits right into the oarlock (which you could mount on the transom) and allows hand line hauling without being near the gunwale or transom. The Handy Hauler is a davit with a block on the end of it. Rated at 300 pounds capability, the Handy Hauler may be used by hand or with a user supplied motor for the davit or on the gunwale.
The most common pot puller arrangement is 12 volt electric powered. The options for pulling total pot weight range from 100 to 300 pounds. There are two main styles of pot pullers; The first where the puller motor is supported on a swivel at the end of the davit and the second is where the puller motor is mounted on the davit, over the gunwale and the line is run through a block. For those working in the Pacific Coast shrimp and crab industry, the davit end mounted puller motor is more familiar and common. The puller motor mounted to the davit is more typically seen on the Atlantic Coast in the lobster, crab and shrimp industry. The choice of styles depends more on what a fisherman finds comfortable using and the vessel they are using it on. The Ace +40 Line Hauleris a recreational hauler that can handle up to 100 lbs pot pull. For a davitless installation or for use with the Handy Hauler, the Quick Catch pot puller can be gunwale mounted recreational use. Quality Productsbuilds recreational to light commercial pot haulers of both puller motor styles and accomidating continuous pot pulls with the:
The Honda powered gas pot pulleris an option for those boats that want to avoid electric motors. The biggest advantages are the incredible line speed of 180 feet per minute coupled with the heaviest lift capacity of 550 pounds. For the professional who needs speed and hauling capacity as well as the rugged reliability of the Honda engine, this puller meets the needs.
Nothing causes as much concern for a boater than a fire aboard while underway. Here is what happens in a boat without an automatic engine room extinguisher. Most boat fires start in the confines of the engine room, killing engine and electrical power to the vessel. One or two 2BC extinguishers cannot put out the enclosed fire. The fire then spreads quickly to the rest of the vessel through all the flammables that are readily available, such as the wood trim and foam cushions. Soon the very fiberglass the boat is built from is burning. Ultimately, leaving no alternative but to abandon the vessel. The vessel burns to the waterline.
The key to fighting a boat fire is done at the dock before you leave the marina.
Here are the USCG minimum requirements for fire extinguishers onboard pleasure craft
Keep in mind that these minimum requirements are exactly that; the absolute minimum. A B-I type extinguisher equals 2 pounds dry chemical. A B-II type extinguisher equals 10 pounds dry chemical. These portable fire extinguishers are also rated to the class of fire they will be able to put out.
You will likely be using an approved BC Class (although it may be ACB) extinguisher. Using a portable dry chemical extinguisher will allow you to fight a fire ONLY if it is in the first couple minutes of a burn and you can spray the extinguisher at the base of the fire; after that, you are using the extinguisher to fight the fire as you exit the vessel. A portable fire extinguisher should be kept handy between the galley and the exit and a second one near the engine room.
Now for the engine room. Because of it’s caustic, noxious agent, discharging a dry chemical extinguisher into a fire may cause damage or even destroy the items that you are trying to protect. There is a superior, modern extinguisher medium (agent) called FM-200. This unique product leaves no residue and is safe to discharged near any electrical or mechanical equipment. FM-200 is even safe enough for discharge in occupied spaces! FM-200 systems reach extinguishing levels in 10 seconds or less, stopping ordinary combustible, electrical, and flammable liquid fires before they cause significant damage.
For use in enclosed spaces like an engine room, there are two operation modes available for Sea-Fire FM200 systems; automatic and manual / automatic models. A Sea-Fire automatic extinguisher is activated by the attached temperature sensor valve. Discharge will occur when the sensor valve temperature rises to the system activation point as shown in the specification table and on the label attached to each unit. The manual / automatic offer the ability to lead a manual discharge cable to a position outside the enclosed compartment (often the helm station) so that the extinguisher may be operated remotely. If an automatic / manual extinguisher is not activated manually, it will work as a normal automatic model and discharge when the system activation point is reached.
Sea-Fire manufactures FM-200 FD Series manual and automatic fire extinguishers for areas as small as 175 cubic feet and up to 1500 cubic feet. The Sea-Fire FG Series are made to fit small engine rooms an other closed areas, from 25 to 240 cubic feet. Sea-Fire also manufactures the FT Series which are supplied with long, flexible narrow tubing that can reach into hard to access areas; such as the backside of electrical panels for spaces from 25-150 cubic feet.
In summary, dry chemical fire extinguishers are fine for trying to put out a fire on the stove, heater or open area. Sea-Fire FM-200 extinguishers are useful in enclosed spaces, occupied spaces and hard to reach spaces.