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Old November 27th, 2010, 10:31 PM   #1
Disturban
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Default Block heaters?

Electric cost vs fuel savings?

Just wondering if a block heater would use more electric then I would save in gas going into closed loop faster during cold winter days? Thinking about getting a 1000watt coolant heater with pump that circulates, you splice it into the heater hose on your vehicle and it pumps heated coolant through the system.

They also make heaters that attach to the oil pan and dipsticks that are actually heating elements...might run one or the other in combination with the circulating heater to heat the oil as well.

I think a combo of the two will help get my vehicles into closed loop withing a few minutes vs 5 to 10 minutes when it gets real cold out.

This isn't so much for me but for my wifes truck who makes many short trips everyday and a lot of times the truck never even gets up to operating temperature and she is getting pretty bad gas mileage right now.
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Old November 27th, 2010, 10:56 PM   #2
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You might try a free alternative, a grille block. Block off 75% of the grille and see how that changes the warm-up time. During the winter months, you won't have a problem with overheating with a 75% block, warm up will be quicker, and you get a small aerodynamic increase.
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Old November 27th, 2010, 11:52 PM   #3
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I dont think that you will ever see a benefit in gas mileage. It will definatley reduce wear on the engine components but a 1000w block heater is gonna cost about 5-10 cents every hour so if you have it on a timer to run 3 hours in the morning it will cost you lets say 20 cents a day. The beneficial gas mileage may recover that cost but probably marginally. once you factor in the initial cost of the setup it will become a poor investment if you consider it purely for fuel savings. The engine wear reducing effects it will have would be benefitial, esspecially on cold winter mornings. Things that heat the oil are better for cold starts since the oil is thinner and you get less time of no oil running. Heating the coolant may get you to operating temp sooner but that initial start up is with cold oil.
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Old November 28th, 2010, 08:03 AM   #4
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like ^ he said you may not save money but you will definitly save wear and tear on the engine as well as the benefit of instant heat when you get in the truck. what coolant heater are you going with and where are you getting it? i've been looking for one for my truck and can't seem to find anything other then regular block heaters
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Old November 28th, 2010, 09:06 AM   #5
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Quote:
Originally Posted by Kodiak450r View Post
like ^ he said you may not save money but you will definitly save wear and tear on the engine as well as the benefit of instant heat when you get in the truck. what coolant heater are you going with and where are you getting it? i've been looking for one for my truck and can't seem to find anything other then regular block heaters
These splice into the heater hose and circulate hot coolant
http://cgi.ebay.com/ebaymotors/Kats-...Q5fAccessories

They make a 1000watt heater as well but now I cant find it?

Might run it in conjunction with some type of oil heater as well, either a dipstick heater or pan heater. Would just be nice to jump into the truck and have it warm in a few minutes vs 10 minutes. It would have to save gas because the wife usually lets the truck idle until it warms up, usually 10 minutes or so...I tell her that is one reason why she is getting bad mileage because a vehicle sitting at idle is getting 0 mpg and dropping her mpg average.

Her average in the summer is about 18mpg and now it is 14.5...I understand a lot of other factors contribute to bad gas mileage in the winter such as winter gas, rolling resistance of cold tires, air is denser creating more aerodynamic drag, ect, ect...but I am trying everything I can to get it up at least a few mpg because she drives a lot!

I am using Amsoil SSO 0w30 oil, tires are inflated to 36psi instead of 35psi, complete tune up, plugs, wires, cap, rotor, fuel filter, air filter, synthetic fluids in both diff's and transmission. All these changes actually raised the mpg from 13mpg last winter to the 14.5 we are getting now.

In the summer I can get 20mpg on the hwy with her truck, we just made a trip to Detroit Friday and I reset the computer and got an average of 16.5 there and back all hwy...that is 3.5mpg less because of the cold weather and winter blend gas.
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