BLOCK HEATERS - GENERATORS, FIRE PUMPS, MARINE, EMERGENCY SERVICES, MACHINES WHICH DON'T START EASY & WASTE PUMPS:

Maintain Oil Viscosity & Cold Starting Performance.

Engine block heaters, also known as water jacket heaters or engine pre-heaters, are normally supplied and installed as a generator package accessory. For some generator models, this could be a factory-installed accessory, and for others, it may be an optional price-adder that the customer can choose at the time of purchase. Block heaters are typically used in environments where any stationary engine is subject to ambient temperatures below 16 degrees celsius. They add reliability to the system by preheating the water jacket coolant of the engine and maintaining a warm temperature, thus assisting the engine start cycle for rapid on-load performance, assist to achieve faster oil pressure, provide overspeed prevention due to cold engine overfuelling, improved oil delivery and enhance general engine protection.

Can't find parts for your existing block heater?
Replacement parts cost more than a new heater?
Can't adjust the temperature?
It's fried itself electrically?
Plastic junk casing is cracked and leaking?
Die cast alloy casing has become corroded, porous and is leaking?
Your hoses don't fit correctly?
WE CAN HELP..........DOZENS & DOZENS OF SUPER SATISFIED CUSTOMERS WORLDWIDE,
ALL THE WAY TO THE CANADIAN ARCTIC, ALASKA & ANTARCTICA.

• 100% New Zealand designed & built.
• Precision TIG welded, LASER cut components, German enclosures and NZ manufactured elements & thermostats.
• 304 grade stainless steel.
• Electrical Declaration of Conformity available on request.
• Ideal for generators, fire pumps, water pumps, waste pumps, marine applications or any stationary engines. We have fitted them to boats, cars, trucks and some other pieces of obscure machinery.
• Can be retro fitted to any engine of any size. Larger "V" engines may require one on either side.
• Lasts a lifetime, no more plastic or die cast alloy junk.
• Accepts various hose tail sizes (supplied with kit).
• Universal, pre drilled mounting kit (supplied with kit).
• Can be installed with or without a circulating pump.
• Comes with 1500W (standard), 2000W or 3000W Incoloy element. Titanium available on request.
• Comes standard with a non-resettable 65C-120C Thermostat.
• Simple to install single phase 220V - 260V.
• All electrical components are NZ compliant and conform to AS/NZS standards.
• Replacement thermostats and elements available from any electrical wholesaler.
• Easy temperature control, no more cooked cylinder heads, water pumps and hoses.
• Telephonic and email support, best advice and intentions, 35 years of generator heating experience from the block heater guru.

Installation (read carefully as this is where most installers screw up):

• We recommend genuine, made in USA, Continental Blue Xtreme (available from Blackwoods in NZ) heater hose and not the cheap half rubber, half chalk, rubbish. Dunlop have a similar product. Some customers have reported good success with silicon hose. Quality hose costs a lot more but lasts a lifetime.
• Prevent potential heater explosions and only install isolation valves on the engine side, and never on the heater body.
• All hose tail threads are ^3/4" BSP.
• Double check your wiring and fuse/breaker sizes to ensure your load can be supported.
• Can be horizontally or vertically mounted (electrical terminal box must be at the top for vertical installation).
• We suggest all engine side hose tails and valves are stainless steel or good quality brass or nickle plated brass.
• The larger the pipework, the better the circulation.
• Use a small quantity of nickle based anti-seize with a minimum of 12 wraps of PTFE based thread tape to insert fittings correctly. Add thread glue if you have.
• We recommend a block temperature of 35-40 degrees (max) Celcius, remembering that the actual heater temperature will be much higher.
• If you boil the engine block, the head gasket and water pump will leak, forming dehydrated coolant deposits.
• Diagonal flow across the engine is best, one hot inlet on the back of the head and one cold outlet diagonally lower down works best.
• Hoses must not have kinks or droops, direct from the heater to the respective engine connection point is best.
• Block heater must be flooded and bled before powering up. Easiest method is to connect coolant hoses, open isolation valves and run engine for a few minutes. Top up coolant once installation is complete.

Why wont it work???

• Thermosyphon requires a reasonable height difference between inlet and outlet on the engine and heater side for it to work correctly. The larger the height difference, the better it works. For greater efficiency, connect the high side of the heater to the high side of the engine and similarly on the low side. Don't plumb anything through the thermostat assembly, and ensure design flow even when the engine is in a cold (thermostat closed) state.
• If you install it correctly it won't need a circulating pump in 99.9% of cases.
• Below is a Caterpillar installation drawing from SIS. It's wrong, the pipes have been reversed. 3 is higher than 6, 4 but opposite on 5, 7. Hoses run straight and up, which is correct.

Each kit contains:

• 1 x Heater tank with electrical enclosure, terminal block and leads.
• 1 x Adjustable thermostat.
• 1 x Element.
• 2 x BSP Hose tails (maximum 1" hose size - please specify sizes at order).
• 2 x Tank mounts suitable for horizontal or vertical installation.
• 2 x Tank mount hose clamps.
• 1 x Cable gland (supplied loose, for installer to decide cable entry point).
• Plastc box dimensions 120 x 120 x 85.
• Tank diameter - 100mm.
• Tank length excluding hose tail - 300mm.
• Maximum overall dimensions without hose tails inserted - 126 x 120 x 400.

Suitable replacement for all makes and models:

Cummins block heaters.
Perkins block heaters.
Kohler block heaters.
MTU block heaters.
Rolls Royce block heaters.
FPT block heaters.
Hotstart block heaters.
Hotshot block heaters.
Generac block heaters.
Kubota block heaters.
Marine block heaters.
Vvkb block heaters.
Grainger block heaters.
Smartgen block heaters.
AKSA block heaters.
Volvo block heaters.
Deutz block heaters.
Scania block heaters.
Caterpillar block heaters.
Detroit block heaters.
Antarctic block heaters.
Arctic block heaters.
Canada block heaters.
Sub-zero block heaters.

The list is endless.