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- From: bullock@watson.bms.com (JOAN BULLOCK)
- Subject: Re: How to cut back my heat bill?
- Message-ID: <20NOV199216305953@watson.bms.com>
- News-Software: VAX/VMS VNEWS 1.4-b1
- Sender: news@synapse.bms.com
- Organization: Bristol Myers Squibb Pharmaceutical Research Institute
- References: <92325.085334F0O@psuvm.psu.edu>
- Date: Fri, 20 Nov 1992 21:30:00 GMT
- Lines: 24
-
- In article <92325.085334F0O@psuvm.psu.edu>, <F0O@psuvm.psu.edu> writes...
- > My question is, will turning my thermostat back to 60 and keeping
- >it there save me more money then if I would keep it at 72? I would think
- >it would, but the person from the gas company said it wouldn't.
-
- You are correct. To a point. Interior walls and objects in your home do
- have a latent heat capacity which must be overcome when you cycle the
- temperature. Denser objects generally have a higher heat capacity (i.e. it
- takes more energy to raise them X deg F). When you increase the temperature
- of your thermostat, your furnace will run until _all_ of the interior
- (walls, possessions as well air) has risen to the desired temperature.
- Because it takes longer to heat up most of the interior of your home than it
- does to heat up low heat capacity air, you probably _feel_ warm before your
- heating plant settles into temerature maintenance mode. (I hope the
- preceeding makes sense.)
-
- Anyway the trade-off between not heating when you are not present and
- re-heating when you _are_ comes at a delta of 10 - 15 deg F for 8 hour cycles
- (when at work or asleep). Of course for longer cycles (vacation) your delta
- can be much higher. But keep in mind that for temps below 50 deg F you get
- to worry about pipes freezing.
-
- Do monkey with your thermostat. What you propose sounds reasonable to me.
- Shame on your gas company for spreading mis-information.
-