Vegtherms & Other 12V Heaters

12V/24V DC circulation pump for coolant

Use as booster pump to circulate coolant overnight or before morning start and keep fuel tank, filter, lines, warm, using heated coolant from use of existing engine heater (block heater, oil pan heater). Click at left for details!

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Vegtherm Standard

Vegtherm Standard 20A @12V, with 40A circuit breaker, 40A Geuine Bosch relay (most reliable!),wiring pigtail, instructions, bumper sticker. Additional wiring and common connectors to be supplied by purchaser.

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Vegtherm Mega

Vegtherm Mega 32A @12V, with 40A circuit breaker, 40A Geuine Bosch relay (most reliable!),wiring pigtail, instructions, bumper sticker. Additional wiring and common connectors to be supplied by purchaser.

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Vegtherm Standard With Wiring Pack

Vegtherm "Standard" approx. 20A max. amperage draw, 240W@12V, c/w auto-reset circuit breaker, Bosch relay, connectors, wiring, bumper sticker and instructions. Comes complete with hose fittings to accept 3/8" fuel line. Overall length: approx. 9 inches



The Vegtherm has been a very popular item for heating vegetable oil and biodiesel. Thousands sold. Extremely well made and reliable. This model (the "Standard") is used for all smaller engines, for example those that get approx. 25 mpg US or more.

The Vegtherm gets very hot, very quickly. Fully hot in about 40 seconds at zero flow rate. Therefore, it can be installed to switch to SVO at the same time SVO is selected, in fact, the same "trigger" that switches a valve to SVO can turn on the Vegtherm. it allows for switching over to SVO fuel from diesel or biodiesel more quickly than if using engine coolant alone as the heat source for SVO (if using a two-tank system). We switch over when coolant is around 100-140F. We have been using this method for 6 years, many of our customers have adopted it as well, we do not get reports of problems with this approach. We also offer the SVSW60C Early Switchover preventer which can be used to prevent a valve from switching to SVO until engine coolant is 60C/140F. This can be used where gauges do not show engine temperature, and owners wish to eliminate guesswork.


The Vegtherm consistently delivers substanitally higher SVO temperatures and is often added to coolant-only SVO systems to improve their overall performance. Sized to heat room-temperature oil to approx. 70-80C /158-176F at typical fuel flow rates of the engines and miles per gallon mentioned, at cruising speed with a looped return. Uses solid state, advanced heating technology with inherent self-limiting function.

Alternator and belt must be in good condition. This model was sized to heat oil at room tempertarue to the temperature listed, using an example of a vehicle such as a late 80's VW Jetta cruising at 50 mph. We have sold thousands of Vegtherms over the last number of years. If the alternator, belt and battery are in good shape, and the unit is used as directed, the Vegtherm can run all the time, and not cause a problem for an alternator at all. We recommend that the rated output be at least double that of the Vegtherm, so for this model, at least a 40A alternator. We and many customers run with daytime running lights (headlights on all the time), long nights, long winters in Canada, with heaters and rear defrosters, etc. operating, and do not have problems. The new VTSW80C thermoswitch and tee/fitting can be added if desired, to prevent the Vegtherm from heating oil past 80C, but it is not needed in many cases. We do recommend it for the VW TDI for summertime use.

The more fuel efficient cars, idling in summertime can experience SVO temperatures in excess of 212F - some people are concerned about that, even though we have not had any reports of problems created by this, and even though studies such as the ACREVO study (Google it) suggest that for best combustion, comparable to diesel fuel, temperatrues be in this range all the time (and especially at low engine loads).

In any case, to allay any fears some users might have about higher SVO temperatures, we have introduced that optional VTSW80C switch as an option that is simple to add, wire, and will automatically further limit the high temperture cutoff point of the Vegtherm from that which is achieved with the high temperature inherent cutoff point of the heating elements themselves.

The Installation Manual does not ship with the product. Rather, we send it to you in PDF format when we send you a shipping confirmation. We also tell you where to download Adobe Acrobat, in either Windows or Mac versions, in case you don't have it, so that you can open the PDF attachment.

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Vegtherm Mega With Wiring Pack

Scroll to bottom to see larger image.

Vegtherm Mega SVO and Biodiesel Heater, 32A max. amperage draw, (384W max @ 12VDC) use with all applications such as pickup trucks, etc. that get less than 25 mpg US gallon. , includes auto-reset circuit breaker, Bosch relay, connectors, wiring,bumper sticker and instructions. Comes complete with hose fittings to accept 3/8" fuel line. Overall length: approx. 9 inches Our Vegtherm has been a very popular item for heating vegetable oil and biodiesel. Thousands sold. Extremely well made and reliable. The Vegtherm gets very hot, very quickly. Fully hot in about 40 seconds at zero flow rate. Therefore, it can be installed to switch to SVO at the same time SVO is selected, in fact, the same "trigger" that switches a valve to SVO can turn on the Vegtherm. it allows for switching over to SVO fuel from diesel or biodiesel more quickly than if using engine coolant alone as the heat source for SVO (if using a two-tank system). We switch over when coolant is around 100-140F. We have been using this method for 6 years, many of our customers have adopted it as well, we do not get reports of problems with this approach. We also offer the SVSW60C Early Switchover preventer which can be used to prevent a valve from switching to SVO until engine coolant is 60C/140F. This can be used where gauges do not show engine temperature, and owners wish to eliminate guesswork. The Vegtherm consistently delivers substanitally higher SVO temperatures and is often added to coolant-only SVO systems to improve their overall performance. Sized to heat room-temperature oil to approx. 70-80C /158-176F at typical fuel flow rates of the engines and miles per gallon mentioned, at cruising speed with a looped return. Uses solid state, advanced heating technology with inherent self-limiting function. Alternator and belt must be in good condition. If the alternator, belt and battery are in good shape, and the unit is used as directed, the Vegtherm can run all the time, and not cause a problem for an alternator at all. We recommend that the rated output be at least double that of the Vegtherm, so for this model, at least a 40A alternator. We and many customers run with daytime running lights (headlights on all the time), long nights, long winters in Canada, with heaters and rear defrosters, etc. operating, and do not have problems. The new VTSW80C thermoswitch and tee/fitting can be added if desired, to prevent the Vegtherm from heating oil past 80C, but it is not needed in many cases. The more fuel efficient cars, idling in summertime can experience SVO temperatures in excess of 212F - some people are concerned about that, even though we have not had any reports of problems created by this, and even though studies such as the ACREVO study (Google it) suggest that for best combustion, comparable to diesel fuel, temperatrues be in this range all the time (and especially at low engine loads). In any case, to allay any fears some users might have about higher SVO temperatures, we have introduced that optional VTSW80C switch as an option that is simple to add, wire, and will automatically further limit the high temperture cutoff point of the Vegtherm from that which is achieved with the high temperature inherent cutoff point of the heating elements themselves. The Installation Manual does not ship with the product. Rather, we send it to you in PDF format when we send you a shipping confirmation. We also tell you where to download Adobe Acrobat, in either Windows or Mac versions, in case you don't have it, so that you can open the PDF attachment.

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Vegsensor

Install on or near Vegtherm, limit upper SVO temperature at low flow rates, (smaller fuel efficient engines, hot summer days stuck in traffic, etc.) , click link at left for details!

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12V filter heater element

This comes WITH an Overnighter. We sell it here separately, as well. 12V filter preheater fits Racor R90T clear bowls with the 9/16" fitting, draws only a few amps. Use with Battery Brain III or iV - great way to reduce switchover times in cold weather or make practical high cloud point oils/biodiesel. Wire via toggle switch (not included), or for a superior application, combine with our Battery Brain III or Battery Brain IV.

Not all bowls shipped with Vormax fllters and R90T filter elements have a 9/16" fitting.
Unless you pull the small plug and confirm that the outside diameter of the threaded portion of plug is in fact 9/16" you either have to drill and tap the bowl (tap is a 9/16" x 18) or buy a new bowl from us.

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Overnighter

The Overnighter is a package consisting of our 12V fllter heater, a modified Racor filter bowl (use R90T filter element), and your choice of Battery Brain. Specify which Battery Brain you want when ordering!
(See Battery Brain)

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Battery Brain III or IV

Automatically disconnects battery if voltage drops to 12.5V, ensures sufficient cranking for usual start. Allows use of 12V filter heater for Racor R90T filter element with no fear of dead battery. Replaces our earlier "YaVolt". Use with 12V filter heater and Racor R90T bowl with 9/16" fitting, to create an "Overnighter" - keep filter warm all night, ready for instant use in coldest weather without plugging in and without fear of dead battery.

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Pad Heater: 250W, 12VDC

Stick-On Pad Heater for Tanks EH-3659 250 Watt 12V DC Stick on pad heater 5 x 5 inches, heats 10-30 gallons.

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