Amana or York?
I'm debating between AMV90704CX ($ CAD including install), Amana Distinctions GMV950704CX ($ CAD including install) and York TM9V 60k BTU ($ CAD including install and I'm yet to get the exact model id).
The main features I'm looking for:
- the right size
Both Amana's were offered by a major company in the Toronto area. The York was offered by another reputable contractor in the area, so this is for me an even score (although I tend more to the York contractor because it seems to me they should be more qualified because the unit is more complex, I may be wrong though). What bothers me the most is that the 2 contractors (and another 2 I have spoken with) did not use any Manual J or whatever formula for calculating the right size. All of them were just interested in the size of the house (2000 square feet) and the size of the old furnace (outgoing 57k BTU). The Amana guy was dead positive that I need 70k BTU no more no less and the York guy first offered me 80k BTU with TM9X model, but when I expressed my concern about over sizing, the next model TM9V, he offered with 60k BTU. His explanation – TM9X is a one stage furnace and that’s why I need 80k BTU and TM9V is a two stage furnace and that’s why 60k BTU should be enough. Is this a logical explanation?
Can somebody tell me how the 2 Amana’s and the TM9V compare with regards to noise and reliability? Also I’m on a very tight budget, so the Amana Distinction is the winner in this case, but I wouldn’t want to compromise on the feature I’ve stated. I would be happy to go with it if it’s reliable and quiet . I was told the main difference between the AMV90704CX and GMV950704CX is the stainless steel heat exchanger and its lifetime replacement warranty. I’m less concerned about the lifetime warranty but how important is the stainless steel heat exchanger?
Thanks in advance for any input.
Last edited by beenthere; 09-27-2009 at 05:22 AM.
Reason: Removed prices
Thou art including prices and that is a no no here.
Not as lean, not as mean, but I'm still a hardcore, ass-kicking, hard charging Marine! Oohrah!
Do not even consider that contractor. Run!
The Amana guy was dead positive that I need 70k BTU no more no less and the York guy first offered me 80k BTU with TM9X model, but when I expressed my concern about over sizing, the next model TM9V, he offered with 60k BTU. His explanation – TM9X is a one stage furnace and that’s why I need 80k BTU and TM9V is a two stage furnace and that’s why 60k BTU should be enough. Is this a logical explanation?
Staging is for comfort; a 60k btu unit at 95% efficiency will put out 57k BTUs whether it's single stage, modulating, or 2-stage.
With the current government rebates available, a 2-stage unit with an ecm blower can cost less than a singe stage model.
If 57k BTU output was sufficient, don't get anything larger. Amana/Goodman doesn't offer anything between 45k and 70k.
A 80k unit is definitely too large for a 2000 sq ft house in Toronto if reasonable well insulated. (Built 1980 or later)
If you get a 2-stage furnace, insist on using a 2-stage thermostat.
York guy is full of crap.
Thanks, that makes sense. I see the prices were removed and I'm happy that I already got some important info from this forum. I just thought price is an important factor in this decision. After all not everybody can ride a Mercedes
Originally Posted by Mr Chesapeake
The room above the garage being cold is not an indication of an under sized furnace, or over sized.
Its typical of those rooms. to b colder n the winter, and hotter in the summer.
Any company that sizes and prices over the phone by sq ft is not a company you want.
Only way it can be priced. Is to see the set up.
Originally Posted by beenthere
from a few replies of yours on this forum I got the impression that you favour York better. The York guy said they only deal with York because it's a better product. Again, I might give him a benefit of the doubt for a sloppy estimate and hope that the installer will do a good job. How reliable is York in your experience? Will you be in favour of York in my case too?
I would recomend the York.
But not that contractor, after him giving you a BS line the way he did.
If your furnace runs continuously but can't maintain the setpoint when it's -20C (toronto design) outside, it's undersized.
If not, uneven temps can be attributed to undersized ducts to certain rooms; in some cases balancing with dampers can solve the problem.
Oversizing can also cause uneven/poor distribution if the cycles are very short.
I wouldn't stick a 45k input furnace into a 2000 sq ft house without getting a full load calculation done. Replacing existing double pane windows may not make a significant difference; upgrading the attic insulation to R50 and draft proofing is a smart move though.
A 60k york should do fine given the size of your existing unit.
If I remember last winter the blower was almost constantly on. It was like 3 minutes on then about 30 seconds off and then again 3 minutes on 30 seconds off. Is that what is called the cycle? By the way 2000 sq ft is the size without the basement.
Originally Posted by amd
That's not normal.
If I remember last winter the blower was almost constantly on. It was like 3 minutes on then about 30 seconds off and then again 3 minutes on 30 seconds off.
Cycling = starting up and shut down to maintain the setpoint.
Each operating cycle should last at least several minutes.
Can't I solve this by closing or partially closing registers in the living room where the thermostat is installed?
Originally Posted by amd
By the way, the Amana guy said that the old (non-digital round type) thermostat is okay and I don't need to replace it. I'm just wondering how the 2 stage Amana furnace will know which stage to use if the thermostat doesn't tell it. The York guy was positive that I need a new thermostat.