Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Mini experiments: 300w vs. 800w block heater warm up time

dcb · 08-26-2008, 12:59 PM

Just some quick figuring based on standard energy conversion factors

If you run your 800 watt block heater smartly for an hour in the morning, that would be 0.022 gallons equivalent. If you are lazy and plug it in when you get home and run it for 10+ hours that would be a quarter of a gallon and a lot of electricity doing nothing for 9 hours.

edit: it *should* take more time (and energy) to warm up a larger engine. This is based on a motorcycle sized metro engine.

08-26-2008, 12:59 PM	#22 (permalink)
dcb needs more cowbell Join Date: Feb 2008 Location: ÿ Posts: 5,038 pimp mobile - '81 suzuki gs 250 t 90 day: 96.29 mpg (US) schnitzel - '01 Volkswagen Golf TDI 90 day: 53.56 mpg (US) Thanks: 158 Thanked 269 Times in 212 Posts	Just some quick figuring based on standard energy conversion factors If you run your 800 watt block heater smartly for an hour in the morning, that would be 0.022 gallons equivalent. If you are lazy and plug it in when you get home and run it for 10+ hours that would be a quarter of a gallon and a lot of electricity doing nothing for 9 hours. edit: it should take more time (and energy) to warm up a larger engine. This is based on a motorcycle sized metro engine. __________________ WINDMILLS DO NOT WORK THAT WAY!!!