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01-03-2023, 01:42 PM | #1 |
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New Gas Furnace recommendations ?
Looking for few 'gas' furnace replacement recommendations ?
Furnace has been acting erratic and not hold heat at set temperature. Situation started after recent power outages, but has been having issues heating during extreme cold temps. Had HVAC tech review, and he said my 'heat exchanger' in the furnace has cracks and is leaking, causing furnace to run erratic. Going to get a second opinion, but would like to hear feed-back from the Forum on possible replacement options. Current furnace is a Trane X90 is only 17 yrs old, BTU output 60,000. This is way under-powered for the size home I have (two stories-2800SF) Thanks for you feedback, much appreciated ! |
01-03-2023, 01:58 PM | #2 | |
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bigdog (01-03-2023) |
01-03-2023, 01:59 PM | #3 |
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Great heating contractor.
I've had my home in Gilford for over 20 years and have been thru several heating contractors, none of which I've been overjoyed with. I finally found a terribly talented contractor named Jorge Sanchez who owns JLemos Heating and cooling. Jorge's work is outstanding, he understands modern systems and takes the time to set your heating system up properly. In my homes history I've had instances every year with no heat that required intervention as simple as a reset button press or in some cases a service call. In the 4 years I"ve been using Jorge, never once have I had those issues. My oil use has been lower as well with a far cleaner running system.
JLemos heating and AC 603-943-4535 JorgeSanchez15@MSN.com |
01-03-2023, 02:43 PM | #4 | |
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Thanks for the info. My furnace system runs off 'propane', does Jorge Sanchez service gas systems ? |
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01-03-2023, 03:04 PM | #5 | |
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The failure of your current system to hold setpoint could be due to just erratic operation of a failing system rather than capacity. The correct furnace size should be determined from a properly done Manual J or other appropriate calculation for the specific house. Don't pick a contractor who isn't willing (or doesn't know how) to do the necessary calculations. One reasonable way of calculating corrrect unit size is from fuel usage over a suitable period of time. Here is a good article on doing this: https://www.greenbuildingadvisor.com...nace-or-boiler |
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bigdog (01-07-2023) |
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01-03-2023, 03:05 PM | #6 |
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I believe so but I'm not sure. A quick call to him will answer the question. FYI Jorge is in Nashua but despite the distance he is worth the call. He has several customers in the lakes region.
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01-03-2023, 03:14 PM | #7 |
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We used Steve Buy in Moultonborough for our propane Viesmann system- he did a great job. He has not needed to come back yet in the 4 or 5 years since the install!
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01-03-2023, 03:35 PM | #8 | |
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Trane is definitely a good brand...
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We presently use Lakes Region HVAC in Bedford and at the lake and are very happy with them. I believe that they recommend Carrier products for FHA and AC, and Viessman for boilers for FHW. I think as long as you go with a name brand, (e.g., Trane, Carrier, etc), and have it properly sized by a competent HVAC firm, you should be fine. |
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01-04-2023, 09:40 AM | #9 |
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Energy Audit
By all means, ask for an energy audit. And go from the recommendations.
There is energy-efficient energy furnaces available. Check the gov website. https://www.energy.gov/energysaver/furnaces-and-boilers There should be energy rebates and tax credits coming up this year. Take advantage of them if you decide on a new furnace.
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01-06-2023, 07:03 PM | #10 | |
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Seek a contractor that will return phone calls. This was for oil burner service. Water/anti-freeze system. Last edited by TheProfessor; 01-06-2023 at 07:15 PM. Reason: Dog barking (again) |
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01-06-2023, 07:08 PM | #11 |
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Try Callahan AC/HVAC in Moultonborough. My go to
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bigdog (01-07-2023) |
01-06-2023, 07:36 PM | #12 |
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My first garage. I put in a 100,000 BTU hot air propane furnace.
That was over 20 years ago. Still operates fine. The brand is Goodman. The retail price at the time of purchase was $1,250.00. The contractor price was $450.00. Give one an idea of the markup that is being charged to customers. That price was for the unit only. In any brand, same model. The units are all the same size, same housing, using the same components. The only difference between a 25,000 BTU, 50,000 BTu, 75,000 BTU, or 100,000 BTU - is the number of the actual burner tubes. The reason I chose a 100,000 BTU unit is that I wanted heat quickly. A lower BTU unit may be more efficient but the unit will come on and off much more frequently. So . . on . . off . . on . . off. . quite often. And ultimately placing more wear on unit. The igniter, the fan, etc. working harder and more often. Best to get a name brand that all service folks know, where replacement parts are readily available, and can be fixed by any technician. |
01-07-2023, 09:22 AM | #13 | |
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You are on the right track with the brand name advice, but I wouldn't necessarily go by brand name, what I ask for is a unit where all parts that can fail are either in the tech's van or in stock at the distributor. Usually this rules out most super efficient burners and systems. For propane around 90 % seems to be the magic number. For oil, maybe around 87%. In general I like to avoid variable speed motors and hi-tech busses/communications on board. Wifi enable is another thing I really don't want in my hvac equipment, other than the thermostat. Those components obsolete out pretty quickly. Bigdog, I would find a good contractor, who sells good equipment. Have them properly size the unit to your house. If you need ducting modifications then get them done as that is usually the issue if you are having problems heating with forced hot air. Tell the contractor that you want a unit where if he shows up to fix something he'll have the parts on his truck. |
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01-07-2023, 10:15 AM | #14 |
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Steve at Gunstock Hvac just did our propane boiler, manifold, superstor, baseboard heat and a Samsung split system. Great guy and he WILL call you back.
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01-10-2023, 08:23 AM | #15 |
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We had the same experience with Steve , made appointments and dident show up. Waisted 8 months on this guy . Found someone else out of Sandwich that was great . Trying to find his name
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01-11-2023, 03:24 PM | #16 | |
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Neighbor build new home. Had analysis. Stated all he needed for propane hot air was 25,000 BTU. Does provide heat. But the burner and fan go on and off multiple multiple multiple times. To the point that he is going to remove furnace and get a replacement with more BTU's. So much for "analysis". |
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01-11-2023, 09:59 PM | #17 | |
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01-12-2023, 07:58 AM | #18 | |
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Don Morin my HVAC guy agree and he installed a 75K condensing boiler with on-demand water. Been very happy with this setup. Since Don Morin retired, I had to different HVAC companies doing annual maintenance. Both say the furnace is too big. I'm happy with it. Still finding an HVAC company that knows the latest technology.
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01-12-2023, 08:33 AM | #19 |
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01-12-2023, 12:18 PM | #20 |
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Agreed, not enough for nearly all houses in NH, but quite adequate for the relatively few built to be superinsulated, and for a new house design the heat loss at design minimum outside temperature can be calculated fairly well. See my post #5 above in this thread. To be sure, some like to have heat blasting out to feel toasty.
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