Type: Posts; User: fortressofcomfort
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02-10-2007, 01:04 PM
Installing thermostats that you can force to a predetermined number of CPH may help a little. Looks like you are cycling 5-6 times per hour which is hard on the equipment. Vision Pro, for example,...
12-28-2006, 02:10 PM
My guess is the thermostat isn't making THAT much difference in your gas usage.
I'd look elsewhere.
The timer only ticks when the unit is running.
12-04-2006, 11:09 AM
So at -15F outdoor ambient it takes your furnace 20 minutes to increase the indoor temp by 1F degree? What are you complaining about then? I agree with Mark, sounds like operation of a normal sized...
Why not just switch the thermostat to Em Heat ? That will keep the HP from running; only the supplemental heat will run.
12-03-2006, 02:00 PM
8-10F degrees setback at work and overnight for max savings...
like t527ed said, try both and see what you like.
You would need to know the size of the heater kit. Should be notched out somewhere on the HP placard.
5kw, 8kw, 10, 15, 20, 25, etc.
It could also depend on the blower speed but we could assume...
11-28-2006, 10:34 AM
Next time go outside and see if the coil is indeed frosted.
Sounds like a test question.
Install dummy thermostat set at 76F
Hide "real" thermostat and set to 70F
With gas heat, set back as far as you can stand it for maximum savings.
11-20-2006, 01:12 PM
... or not enough airflow, causing the strips to bounce off their internal limits.
Listen for clicking at the air handler.
11-19-2006, 09:18 PM
I see, he's using 47F for the COP. So after it gets below freezing and the coils get frosted he will probably get 2/3rds the output, putting the cost in very cold weather pretty close to gas.
Probably not adequate.
What kind of temperature stratification are you measuring?
1) Let heat or a/c run for a while.
2) Test temp upstairs and temp downstairs.
3) Report the difference.
It sounds like a safety control is locking out the system. More than likely high limit but could be others. You definately need to call a pro on this; it's locking out for a reason.
It's like your...
11-07-2006, 04:57 PM
Doesn't the COP drop off dramatically after the unit gets iced up? Is it really a straight line? I agree with Bald one, if you set it at 40F you will never have to worry about it getting iced up. ...
I can't recommend closing any registers... you need to close down the airflow much closer to the plenum. In other words, look for DAMPERS close to the plenum. The reason is if you close a register,...
I don't think heating objects with mass, or cold air in cabinets or closets has anything to do with run time. A 70F house will eventually equalize all the objects in the room to be at 70F,...
The type of heating will certainly affect this.
A house with baseboard or in-floor radiant, set at 71F, will feel much warmer than a house with gas/oil forced air set at same temperature, which will...
11-01-2006, 04:43 PM
"using a dial type hygrometer, I am between 60 and 65 all the time. Digital type says high 40's to low 50's.
Big difference for some reason. ?????!!!!"
I wouldn't trust the dial type hygrometer....
Do you or your wife feel cold easily?
That is the question to ask.
All the science and mathematics in the world do not change the fact that 90-100F is all you get out of heat pump vents. And it...
10-27-2006, 02:07 PM
We turn off the gas at night and use a little radiator type space heater in our bedroom. It definately saves us money. You would have to do the math to be sure but at 8cents/kwh it is pretty cheap...
You need to find someone to fix the ductwork. Find a pro.
10-25-2006, 07:36 PM
I agree with pstu; for now NG is cheap but wait 5-10 years. But really, WHO KNOWS?
In these days, energy is bought, traded, and sold daily and therefore the commodity or retail prices can change...
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