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Old 06-14-2015, 11:33 AM   #1
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Furnace Options and advice...???


Hi Guys...

I'm at my son's in Cali and we are starting to shop for a new furnace and install.

First two guys out here really had no great solution... maybe they did not carry the brand we need... or maybe there is no solution... that's why I'm asking some of our pro's here.

Problem:

We have a difficult access in a crawl space under my son's home.

1) We need as small (physical dimensions) forced air unit, 50-60K BTU, horizontal flow and high efficiency for side wall venting.

2) Alternatively, we need a unit that is perhaps designed to be taken apart and reassembled easily.

The first two hvac guys only offered units approximately 18x30x33... maybe smaller units are not available and do not exist.

One guy offered a reassembly at $750.

Guess I'm asking if you know of or it is likely we will find better size alternatives and options.

Thanks for any advice in this regard.

Best

(PS.... This is a second furnace to the home that has to service the original home.... We already have a new horizontal overhead (in garage) serviceing most of the home.)

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Old 06-14-2015, 11:38 AM   #2
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Furnace Options and advice...???


What is the size of the opening ( in the floor ? ) that the new furnace has to fit through ?

My only thought is maybe using 2 small units twinned together ?

God bless
Wyr

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Old 06-14-2015, 11:41 AM   #3
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Furnace Options and advice...???


Everybody is pretty close in size and 33" seems to be the standard. You cannot easily dis-assemble them or at all as they are spot welded not screwed together.

Make a bigger hatch thru the floor or outside wall if possible. Frame the hatch and put footings and posts underneath and supports if it is going to be a structural problem. Get some Pro advice how to do that but it is possible.
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Old 06-14-2015, 11:54 AM   #4
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Furnace Options and advice...???


Good advice , but probably not what anyone wants to hear .

I do not have any HVAC under my floor ( pier & beam construction ) . The scuttle hole was cut between 2 floor joists , on 16" centers . So the opening is a tad over 14" . A very tight fit to squeeze my old , fat body through . Ceiling scuttle hole is about the same story .

Not much room under the floor and only somewhat more in the attic . :-(

Need to get under the floor and work on the plumbing , but I have been procrastinating .

God bless
Wyr
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Old 06-14-2015, 12:12 PM   #5
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Furnace Options and advice...???


Yeah, crawlspace furnaces are pretty rare where I am. Most houses have a basement or half basement. Only the old cheap war time ones have crawlspaces. I had one that was so cluttered with pipes etc there was no way to crawl under or over them to get at the furnace. I think they dropped it in and then added to the house when they did a reno. I have seen pics of where they sistered the load bearing beams and added a hatch and supported it underneath to get proper access. It is what it is.
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Old 06-14-2015, 12:24 PM   #6
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Sounds like you may need to header out out the access and make it wider.
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Old 06-14-2015, 03:50 PM   #7
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Quote:
Originally Posted by beenthere View Post
Sounds like you may need to header out out the access and make it wider.
BT.... Afraid you may be correct..... or take apart some major DWV... or flooring....

But "HOPE SPRINGS ETERNAL IN THE HUMAN HEART"... that someone makes a smaller unit configuration.....

(Seems like my issue/case would not be that strange... and someone would of come up with a dismantleable or smaller specialty comfiguration... I'm still looking/searching)

(This original part of the home was a HO 1949 build.... and we hate to tear into anything unnecessarily...unless we can improve it , which does not seem feasable in this case.)

Best
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Old 06-14-2015, 03:55 PM   #8
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You do not have a closet you can stick it in ?

God bless
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Old 06-14-2015, 05:44 PM   #9
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Quote:
Originally Posted by MTN REMODEL LLC View Post
BT.... Afraid you may be correct..... or take apart some major DWV... or flooring....

But "HOPE SPRINGS ETERNAL IN THE HUMAN HEART"... that someone makes a smaller unit configuration.....

(Seems like my issue/case would not be that strange... and someone would of come up with a dismantleable or smaller specialty comfiguration... I'm still looking/searching)

(This original part of the home was a HO 1949 build.... and we hate to tear into anything unnecessarily...unless we can improve it , which does not seem feasable in this case.)

Best
They don't make a furnace intended to be dismantled and reassembled to be installed.

I don't think anyone makes a 14" wide furnace anymore.
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Old 06-14-2015, 05:50 PM   #10
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Furnace Options and advice...???


No one makes skinny furnaces as most come with 3 ton capable AC blowers and they are wider. No or very little demand for anything else.
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Old 06-14-2015, 06:09 PM   #11
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Furnace Options and advice...???


Quote:
Originally Posted by WyrTwister View Post
You do not have a closet you can stick it in ?

God bless
Wyr
Wiretwist..... This is Cali coast/beach town..... the footprint a closet furnace eats up is worth more than the furnace......

Space is really a premium..... as matter of fact, we're willing to pay for a 90+ side venter (that likely will not even go on 60 days a year) just to save the chase space of a B vent unit. Crazy I know...

Best
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Old 06-14-2015, 06:21 PM   #12
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Furnace Options and advice...???


Galagar used to say living in Southern California was like living in a bowl of granola . Those that weren't fruits or nuts were flakes .

Never been there and no desire to go .

God bless
Wyr
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Old 06-14-2015, 07:07 PM   #13
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Furnace Options and advice...???


Mtn man, Comfort Aire has a 38K upflow that can be set up hztl with a 14 1/4 width. It's a little small, but it doesn't sound like you have too many options. Here is a link to their site, down load their brochure and it will list the various sizes. Good luck

http://www.comfort-aire.com/resident...92-gas-furnace

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