home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: misc.consumers.house
- Path: sparky!uunet!walter!porthos!troy!mpb
- From: mpb@troy.cc.bellcore.com (bunz,marcus p)
- Subject: Re: How to cut back my heat bill?
- Organization: Bellcore, Livingston, NJ
- Distribution: na
- Date: Fri, 20 Nov 92 18:37:54 GMT
- Message-ID: <1992Nov20.183754.25322@porthos.cc.bellcore.com>
- References: <92325.085334F0O@psuvm.psu.edu> <1992Nov20.154358.26582@sei.cmu.edu> <1992Nov20.175535.1694@osf.org>
- Sender: netnews@porthos.cc.bellcore.com (USENET System Software)
- Lines: 47
-
- In article <1992Nov20.175535.1694@osf.org>, drand@spinner.osf.org (Douglas S. Rand) writes:
- > In article <1992Nov20.171452.2840@cbfsb.cb.att.com>, disaacs@cbnewsg.cb.att.com (david.e.isaacs) 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. This
- > |> >|> doesn't make sense to me for the following reason:
- > |> >
- > |> >
- > |> >A good compromise is to buy a programmable setback thermostat, such as a
- > |> >Hunter, and program the night temperature for 5-10 degrees lower, having it
- > |> >come back up just before you rise, go back down after you leave for work, and
- > |> >come back up before you get home. You can get them for $40-60 depending on
- > |> >features, and they will save you that the first heating season.
- > |> >
- > |>
- > |> I have heard that it's better to just set your thermostat to 68 (or whatever
- > |> temp you like) and leave it. Someone told me that using daily setbacks is like
- > |> changing speeds in a car and is energy inefficient. I have a programable
- > |> thermostat but only set it back when we are going away for over a day. Anyone
- > |> out there know the "emis" on this is ?
- > |>
- >
- > Although Stavros debunked this elsewhere in this thread, I'll
- > do it here. The laws of thermodynamics says that the heat loss
- > is directly proportional to the temperature delta. It is never
- > more expensive to let the house cool down and reheat. It is not
- > like a car, the furnace operates at essentially a constant efficiency.
- > In fact, the furnace is probably a bit more efficient in the longer
- > runs for reheat, but doesn't make a big difference.
- >
- > --
- > Douglas S. Rand <drand@osf.org> OSF/Motif Dev.
- > Snail: 11 Cambridge Center, Cambridge, MA 02142
- > Disclaimer: I don't know if OSF agrees with me... let's vote on it.
- > Amateur Radio: KC1KJ
-
- As with everything, there are exceptions. If you have a heat pump,
- and it is necessary to kick on the resistive heat backup to get
- the house warmed up, then you might be better off maintaining
- the constant (warm) temperature if that can be done without
- resorting to the resistive backup. The setback also saves energy
- by having fewer on-off cycles of the furnace, so there is less
- energy wasted in getting the furnace and distribution system up
- to temperature.
-
- Marc
-
-