Is it worth it to go to a 95% furnace? - Page 2

>Quite a bit oversized, it seems to me.
>The hvac installers estimated the heat input going into the original furnace
>(by timing the 1 cu ft dial on the gas meter) to be about 70,000 btu in my
>4,000+ sq ft drafty 1920 Englich tudor, 1/2 mile from NYC.

>The OP's 300,000 total btu is thus over 4 times mine!
>Mebbe he *is* in Alaska.

> -------------------------------------
> I currently have TWO 80% 20 year old Tempstar 150K BTU furnaces, one for
> each floor in my 4600 sq ft home (2300 in each floor) (built in 1989).
> Due to some situation, the builder will be replacing both furnaces with
> new Trane 92% furnaces. He says that per his calculations TWO 120K BTU
> furnaces will be enough for my home (I am adding R30 cellulose insulation
> to my attic)
> I have to pay extra if I need TWO 95% furnaces instead and extra if I wan=

> TWO variable valve and variable speed ones (all from Trane)
> I use $2288 worth of gas each year to heat my hone and operate the hot
> water heater and drier each year.
> Questions:
> 1.
> Am I right that I will save 3% on my gas bill with the extra 3%
> efficiency? That means I will save $60 each year and for the lifetome of
> the 95% furnace which is 20 years, I will save $60X20=3D$1200 for both
> furnaces ($600 for each furnace). So anything more than $600 extra for
> each 95% furnace will not be cost effective
> 2.
> What is the gas savings with the variable valve and variable speed.
> 3.
> Do variable valve and speed furnaces make any sense financially and even
> comfortwise in a 2 furnace home?

>
> -------------------------------------
>
> I currently have TWO 80% 20 year old Tempstar 150K BTU furnaces, one for
> each floor in my 4600 sq ft home (2300 in each floor) (built in 1989).
>
> Due to some situation, the builder will be replacing both furnaces with
> new Trane 92% furnaces. He says that per his calculations TWO 120K BTU
> furnaces will be enough for my home (I am adding R30 cellulose insulation
> to my attic)
>
> I have to pay extra if I need TWO 95% furnaces instead and extra if I want
> TWO variable valve and variable speed ones (all from Trane)
>
> I use $2288 worth of gas each year to heat my hone and operate the hot
> water heater and drier each year.
>
> Questions:
>
> 1.
> Am I right that I will save 3% on my gas bill with the extra 3%
> efficiency? That means I will save $60 each year and for the lifetome of
> the 95% furnace which is 20 years, I will save $60X20=$1200 for both
> furnaces ($600 for each furnace). So anything more than $600 extra for
> each 95% furnace will not be cost effective
>
> 2.
> What is the gas savings with the variable valve and variable speed.
>
> 3.
> Do variable valve and speed furnaces make any sense financially and even
> comfortwise in a 2 furnace home?
>

> The Stucco site is not a help forum, it's an
> *advertising* forum that invades real forums
> (like "alt.home.repair", part of "usenet")
> parasitically in order to generate free
> advertising for itself, which continually
> advances its search engine placement, thereby
> increasing its own revenue through its click-
> through advertising commissions.
> So the first thing you should do is write them
> an email and tell them to quit spamming.
> Then try to find your way here through proper
> channels. Please do a google search on "Usenet"
> and post the regular way.

> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
> message
> -------------------------------------
> I currently have TWO 80% 20 year old Tempstar 150K BTU
> furnaces, one for
> each floor in my 4600 sq ft home (2300 in each floor) (built
> in 1989).
> Due to some situation, the builder will be replacing both
> furnaces with
> new Trane 92% furnaces. He says that per his calculations
> TWO 120K BTU
> furnaces will be enough for my home (I am adding R30
> cellulose insulation
> to my attic)
> I have to pay extra if I need TWO 95% furnaces instead and
> extra if I want
> TWO variable valve and variable speed ones (all from Trane)
> I use $2288 worth of gas each year to heat my hone and
> operate the hot
> water heater and drier each year.
> Questions:
> 1.
> Am I right that I will save 3% on my gas bill with the extra
> 3%
> efficiency? That means I will save $60 each year and for the
> lifetome of
> the 95% furnace which is 20 years, I will save $60X20=$1200
> for both
> furnaces ($600 for each furnace). So anything more than $600
> extra for
> each 95% furnace will not be cost effective
> 2.
> What is the gas savings with the variable valve and variable
> speed.
> 3.
> Do variable valve and speed furnaces make any sense
> financially and even
> comfortwise in a 2 furnace home?
>

>> The Stucco site is not a help forum, it's an
>> *advertising* forum that invades real forums
>> (like "alt.home.repair", part of "usenet")
>> parasitically in order to generate free
>> advertising for itself, which continually
>> advances its search engine placement, thereby
>> increasing its own revenue through its click-
>> through advertising commissions.
>> So the first thing you should do is write them
>> an email and tell them to quit spamming.
>> Then try to find your way here through proper
>> channels. Please do a google search on "Usenet"
>> and post the regular way.

> Stormin Moron has a point!! Altho it's not evident here, it's more
> evident in the 10/6 post Furnace or Thermostat issue? by JKirkby. Stucco
> somehow announces itself.
> If you go to http://www.thestuccocompany.com/hvac/1.htm ,
> you'll see that alt.hvac is hijacked there, leading one to believe it is
> Stucco's own forum!
> wow.... this is an artfully/diabolically "monetized" website, essentially
> pirating web resources for its own revenue.
> So I don't think heartmd was posting *from* there, but most of ouir posts
> do appear there.
> Except my Mr. Slim post does not appear there -- yet.
> --
> EA

>> --
>> Christopher A. Young
>> Learn more about Jesus
>> www.lds.org
>> .
>> message
>> -------------------------------------
>> I currently have TWO 80% 20 year old Tempstar 150K BTU
>> furnaces, one for
>> each floor in my 4600 sq ft home (2300 in each floor) (built
>> in 1989).
>> Due to some situation, the builder will be replacing both
>> furnaces with
>> new Trane 92% furnaces. He says that per his calculations
>> TWO 120K BTU
>> furnaces will be enough for my home (I am adding R30
>> cellulose insulation
>> to my attic)
>> I have to pay extra if I need TWO 95% furnaces instead and
>> extra if I want
>> TWO variable valve and variable speed ones (all from Trane)
>> I use $2288 worth of gas each year to heat my hone and
>> operate the hot
>> water heater and drier each year.
>> Questions:
>> 1.
>> Am I right that I will save 3% on my gas bill with the extra
>> 3%
>> efficiency? That means I will save $60 each year and for the
>> lifetome of
>> the 95% furnace which is 20 years, I will save $60X20=$1200
>> for both
>> furnaces ($600 for each furnace). So anything more than $600
>> extra for
>> each 95% furnace will not be cost effective
>> 2.
>> What is the gas savings with the variable valve and variable
>> speed.
>> 3.
>> Do variable valve and speed furnaces make any sense
>> financially and even
>> comfortwise in a 2 furnace home?