House Heating Question - PeachParts Mercedes-Benz Forum

280EZRider · #1 10-25-2009, 01:12 PM

We all know that once the system has been installed as new, hot water/steam radiators are the most efficient of all home heating systems. So my question is this: Has anyone ever used an electric oil-filled radiator in each room in place of a FAG system? And if so, how bad was the electric bill? And finally, do these oil-filled radiators have an internal pump or not?

C Sean Watts · #2 10-25-2009, 01:22 PM

Quote:

Originally Posted by 280EZRider

We all know that once the system has been installed as new, hot water/steam radiators are the most efficient of all home heating systems. So my question is this: Has anyone ever used an electric oil-filled radiator in each room in place of a FAG system? And if so, how bad was the electric bill? And finally, do these oil-filled radiators have an internal pump or not?

My grandmother used to use one. It wasn't any better than other heating element design space heaters of the same power. It did seem to work much better in smaller rooms, though.

kerry · #3 10-25-2009, 01:23 PM

No pumps. The relative costs depends on the relative price of gas vs. electricity so I don't think any answer will be universal.
I have gas hot water radiators in my house. However, it is zoned and I don't heat the upstairs where we sleep. If the temperatures upstairs start dropping into the 30's I'll turn on oil filled electric radiators in our two bedrooms rather than heating the whole upstairs. Doesn't seem to drive up the bill excessively, although we typically only use them under those circumstances for a few hours a night.
My boiler is slightly undersized for my house. (I bought it used cheap) so when it get to about 20 below zero it has to work hard to keep the house in the mid 60's. I considered installing a higher BTU boiler but concluded it wasn't worth the effort. For the few days every few years where it gets that cold. oil filled electric radiators are an adequate supplement.

toomany MBZ · #4 10-25-2009, 02:29 PM

Shortly after I had a new gas furnace installed, had to pull a line in from the street, the price of NG went through the roof. Here the elec. is relatively cheap, so I got a couple of those, they work fine.
As kerry mentions each scenario will be different due to various costs of energy in your area.
I do keep one in the garage.

mpolli · #5 10-25-2009, 02:58 PM

Quote:

Originally Posted by 280EZRider

hot water/steam radiators are the most efficient of all home heating systems

Technically this is not true, if by efficiency you are talking about: (energy converted to heat)/(energy purchased). Only electricity turns almost 100% of the energy you purchase into heat. The reason it is not used more is because it usually costs more. Point source (space) heaters can be cost effective since they put the heat exactly where it is needed. Keep in mind that in electric heaters "watts is watts" so the technology is irrelevant from that point of view. One 1500W heater will not make more heat than another 1500W heater, even if the advertisement seems to suggest it will. I like the oil filled radiator kind since they have no fan so are quite and reliable. I have a neat one with a remote wireless thermostat, but they don't make that anymore that I know of. They do not have a pump. The oil circulates by "gravity". Your results will depend on a lot of variables. The main ones are the efficiency of your FA system (which depends on a lot of things), and of course your costs for gas and electricity. I do something similar to what you describe, and the savings depends on how you set the heaters. If they are running all the time then you won't save much. If you just heat where you need it and keep the temp reasonable then you might. If you have a wife then this is likely a bad plan...

aklim · #6 10-25-2009, 03:44 PM

Have you thought of asking your utility company? I know the one we have here has thermal imaging stuff to help you see where your house is leaking heat. They also give advice on different heating systems. Perhaps you can try them?

raymr · #7 10-25-2009, 05:37 PM

Its still resistance heating no matter how you slice it. It's the most inefficient way to heat a space when you consider the energy lost at each stage of conversion and transmission from the power supply to your heater. But if your rates are low, it might still be a deal. Just don't bank on it long term.

280EZRider · #8 10-25-2009, 05:58 PM

I appreciate all the input. Here in Cincinnati, I am held hostage by Duke bloody-expensive Energy. Last month I was able to switch electric suppliers from Duke to Dominion - approximately half the price of Duke, even though they still deliver the power. Gas is still the same - HIGH.

I have a couple of electric space heaters, but they seem to blow more than heat; hence, my interest in oil radiators.

Crazy_Nate · #9 10-25-2009, 05:59 PM

I don't have any insight on specific heaters, however...

Insulation, insulation, insulation

A couple of summers ago, I added 12+ inches of blown cellulose type insulation into my mother's town-house attic. It has since paid for itself numerous times (summer and winter). It wasn't difficult at all, seal up any holes with foam (in a can), install some new soffit baffles (keeps the insulation out of the vents), and then spend the better part of an afternoon with a helper blowing the stuff in.

pawoSD · #10 10-25-2009, 06:02 PM

My parents tried it last year by using three oil filled radiators vs. running the furnace....and while it raised their electric bill by about $75-90 a month....it kept the furnace from being needed at all (saving about $200+ a month) It did not work as well when it gets real cold out though. But through December that method worked fine.

Currently we have so much computer equipment running in the basement for his business that it actually has reduced the amount of furnace run-time needed to keep the house warm!

Multiple servers blasting out heat keeps things toasty.

The Clk Man · #11 10-25-2009, 06:08 PM

Here in central Ky, some people are using something called thermal heating, I think it's works by pumping water from under ground and using it to heat. I could be wrong though.

pawoSD · #12 10-25-2009, 06:13 PM

Quote:

Originally Posted by The Clk Man

Here in central Ky, some people are using something called thermal heating, I think it's works by pumping water from under ground and using it to heat. I could be wrong though.

Geothermal, it uses heat stored in the ground, and heat pumps to extract/store the heat in the earth around your home. Its a pretty slick (and very efficient) system.

Brandon_SLC · #13 10-25-2009, 06:24 PM

My 101 year old grandfather likes to keep his room about 85 and has worn out 2 of them. They cost less to operate than I expected. However, they only lasted him 2 years each, before the switch burned out. He was constantly cranking it towards high. Perhaps if you leave the thermostat alone they last longer. Now he has the heat dish style which costs about the same to operate.

When I had my condo in Redmond I had separate electric heaters in each room and it was not that expensive to run. I had doubled my sq. footage from my previous condo but my bill only increased slightly. The oil filled heaters are even more efficient than what I had.

Skippy · #14 10-25-2009, 06:34 PM

Quote:

Originally Posted by 280EZRider

Has anyone ever used an electric oil-filled radiator in each room in place of a FAG system?

So you use gay guys to heat your house? How does that work, or do I want to know

My mom used to keep one of those electric radiators in the bathroom during the winter. It didn't get used all that much, so it didn't make an appreciable difference in her electric bill.

I have electric baseboard heat in my current place, and it is bloody expensive. I have a one bedroom and I keep it at 63-65 degrees in winter and I can still put my electric bill into the triple digits. Single-pane windows aren't helping.

mpolli · #15 10-25-2009, 07:04 PM

Quote:

Originally Posted by pawoSD

Geothermal, it uses heat stored in the ground, and heat pumps to extract/store the heat in the earth around your home. Its a pretty slick (and very efficient) system.

AKA groun source heat pump. Heat pumps are interesting in that they can put out more energy in heat than they consume in electricity. The reason is because it is not producing the heat, just moving it from one place to another. Most heat pumps are "air source". So they have limitations in very cold weather. Ground source solves that issue.