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oil pan 4 · 08-20-2014, 11:39 AM

I really don't think a 12v coolant heater is worth the beating it give your battery and charging system.

I like the idea of warming the engine with free waste heat:
http://ecomodder.com/forum/showthrea...ler-29085.html

Problem with a 300w heater is thats not much power, about 2000 BTUs per hour. A normal block heater that plugs in uses 500 to 1000 watts. I like them a little bigger.

This is a real block heater:
http://ecomodder.com/forum/showthrea...mer-23893.html
4700w total, works pretty fast.

08-20-2014, 11:39 AM	#3 (permalink)
oil pan 4 Corporate imperialist Join Date: Jul 2011 Location: NewMexico (USA) Posts: 11,265 Sub - '84 Chevy Diesel Suburban C10 SUV 90 day: 19.5 mpg (US) camaro - '85 Chevy Camaro Z28 Riot - '03 Kia Rio POS Team Hyundai 90 day: 30.21 mpg (US) Bug - '01 VW Beetle GLSturbo 90 day: 26.43 mpg (US) Sub2500 - '86 GMC Suburban C2500 90 day: 11.95 mpg (US) Snow flake - '11 Nissan Leaf SL SUV 90 day: 141.63 mpg (US) Thanks: 273 Thanked 3,568 Times in 2,832 Posts	I really don't think a 12v coolant heater is worth the beating it give your battery and charging system. I like the idea of warming the engine with free waste heat: http://ecomodder.com/forum/showthrea...ler-29085.html Problem with a 300w heater is thats not much power, about 2000 BTUs per hour. A normal block heater that plugs in uses 500 to 1000 watts. I like them a little bigger. This is a real block heater: http://ecomodder.com/forum/showthrea...mer-23893.html 4700w total, works pretty fast. __________________ 1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost. 1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end. 2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.