First of all Backhoe...Welcome to the Forum.
Backhoe said:
Here's the setup. The garage is a garage under the house with a firewall to the attached cellar. When I want heat in the garage I set up the flexible hose attached to the stove and drag the other end into the garage through the open door between the garage and cellar. The flexible hose has this rating (Temperature Range: -65 F to 1050 F, Intermittent to 1250 F) and the highest temperature I've recorded is 140 F so this is well within its rating, but, most importantly, this was all set up when the building inspector came. He said "Nice setup - this should keep you warm". This is a fairly big town in eastern Mass so this is no local yocel part time, unknowing inspector so I'll take his ok easily as this guy and the rest of his department are known for being tough. Most importantly, I'm very comfortable with what I've put in. If I were to hook it into by existing duct work I'd do some more work with the inspector to get his views.
As others have pointed out "Permanently running this type of heating out to the garage" is not exactly the best idea. There are potential code violations. It's a "hornets nest" I would personally avoid. If you already have a "system(method)" that works for your needs??? The old addage: Why fix something that "isn't broken"??? Comes to mind.
Backhoe said:
As for the resale of the house, I'm not planning on resale within say five years at the least and maybe never. I was just wondering what people have run into trying to sell their house who have some type of wood hooked into their central heat. As other posters have mentioned, some would like it and it seems like others would be turned away so I was wondering, hence the post, what people who have sold with this type of equipment in place have run across for issues and more importantly, has it been a help or hindrance - in general. I haven't seen a post yet by someone who actually sold a house with this type of setup.
A lot of people have this type of setup. Whatever you do "make it looks like it belongs there". A nice looking, well thought out installation will be of added benefit.
The question you have to ask yourself is this: "If I sold my house tommorow...Who would buy it???" By that I mean ask yourself the question: Who is the potential buyer and what are they looking for??? By the sounds of things your house sounds like either a split or raised "ranch" perhaps etc. etc. It doesn't sound like a 5000SQ/FT "McMansion"...(although at a 3 car garage you are starting to get into that neighborhood).
So again who is the potential buyer??? If it's a young "working couple" looking for an affordable home...then the wood furnace "may be a potential attraction" for folks watching every $$$... and with energy prices continuing ever uppward...That will only be more attractive in the future.
However if it's going to be "Some yuppy couple" the proverbial "Never cracked a sweat a day in their life" then they might view woodburning as more of a chore and would probably "Rather just turn up the thermostat"... So if you want to get a ROI on home improvements and these folks are the potential buyer... spend your $$$ on a new wine cellar or a hot tub with a built in surround sound system...
Again...Ask yourself "Who will be buying my home"???
Backhoe said:
What is the reaction of real estate people when they come through for a viewing?
Don't ask the realtor...Tell the realtor "Look...Instead of telling folks 'It has large spacious closets'(Don't know how many times I heard that one searching for a house to buy...yeah yeah Beautifull closets...the wiring looks like spaghetti, the plumbing looks like Rube Goldberg & Sons put it together over the last 30 years one piece at a time and the roof looks like a pair of 50 year old workboots...But hey those are some nice closets your right! BTW Those cinderblocks under the washing machine?? Does the basement flood when it rains or is that a new product being sold by Sears???)' Tell them the furnace was hooked in in one of the latest 'energy crises' You know the one where heating oil hit $4.00 a gallon around 2007..."
Short and sweet of it...just think of "good things to say" for the realtor to "sell your house".
A lot of houses have sold over the years after all the "fads" have hit. Whether it's a coal stove or a wood furnace just make sure the realtor does their job by saying "that can easily be removed like it was never here if it's a sticking point"...
...All in all as others have said make it "your home" and don't be overly worried "about the next guy."
...Sometimes (when it comes to a home...especially woodburning) the best dollar spent...is one you 'saved'.