How to choose between different HVAC replacement quotes
Homeowners replacing aging systems face conflicting quotes and unfamiliar equipment brands like Lennox and Bosch. Without knowing how to compare these options or contractor experience, people risk choosing unreliable installers or overpaying for equipment that doesn't fit their needs.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Getting quotes from multiple contractors
- 2shopping based on online pricing
- 3relying on Google reviews to vet installers
- 4comparing equipment efficiency and brand tiers
- 5Comparing equipment models, SEER2 ratings, and assuming the lower price is best
- 6asking online forums to compare equipment quotes
- 7relying on contractor sizing estimates
- 8Researching manufacturer history and corporate ownership, comparing equipment specifications, checking thermostat compatibility, and relying on installer reputation rather than brand name.
- 9Getting second opinions from other HVAC technicians
- 10Replacing the entire HVAC system with a different brand model
- 11Fixing and relining the old chimney
- 12Installing a low loss header or buffer tank with a combi unit
- 13Asking online forums for brand or system recommendations
- 14Comparing model numbers and specs on paperwork
- 15Looking up equipment prices online and estimating labor costs
- 16Comparing system efficiency ratings, decibel levels, and overall costs attached to individual proposals
- 17comparing multiple contractor quotes
- 18researching equipment models online
- 19asking forums for professional opinions
- 20Obtaining multiple HVAC company quotes to compare installation configurations
- 21Considering alternative heating options like heat pumps
- 22Accepting standard contractor recommendations
- 23Considering relocating the blower to the attic
- 24Switching to an ECM blower
- 25Installing separate mini-split systems each with their own outside unit.
- 26researching different system stages and brands online
- 27consulting HVAC dealers for recommendations
- 28Looking around online to figure out reliable brands or models.
- 29Running historical utility bills through AI tools like Claude to compare projected operating costs.
- 30Relying on contractor recommendations regarding solar compatibility and local energy rates.
- 31Using low-interest state energy efficiency loans
- 32Continuing to use high-cost oil or window AC units
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“We're fixing up our detached garage to use as a woodworking shop, but it gets blazing hot out here during the summer months and freezing when winter hits.”source ↗
“I've been looking around online trying to figure out what brands or specific models are actually reliable without costing a fortune, since my contractor buddy mentioned sizing is pretty important for insulation and space.”source ↗
“Does anyone have experience with units around this size that hold up well over time, or are there certain brands I should probably stay away from?”source ↗
“How do we choose which option to go with?”source ↗
“How do we choose which option to go with?”source ↗
“Hi all - we need a new HVAC system and have received proposals from two local companies. One set is a bit more expensive.”source ↗
“How do we choose which option to go with?”source ↗
“Boiler is over 50 years old and she’s done done. Quotes ranged 14-19k.”source ↗
“Obviously all these options suck haha but I have to do something so the boiler doesn’t kill us. I’m just very curious how others would approach this/what they’d consider or want to know to make this decision, I’m overwhelmed!”source ↗
“Have gotten a few quotes from companies in my area with good reviews, looking to get some advice/opinions.”source ↗
“Seems like a no brainer to go with the Ducane, but wanted to get some opinions.”source ↗
“What type of boiler would be suitable to heat a second with old cast iron radiators?”source ↗
“Get a new type of boiler or get rid of the old chimney?”source ↗
“I'm trying to decide between: Lennox Elite Heat Pump, Model #EL18KSLV-036... and BOSCH Variable Capacity Heat Pump, Model #BOVB-36RTB-M20S”source ↗
“Existing system still works fine but going on 25+ years.”source ↗
“If I had to do over, I would’ve chosen the middle quote which was the experienced non-PE family firm, rather than the new entrant to the market.”source ↗
“Hello, I'm in GA and the air conditioner went out.”source ↗
“Any advice you could offer?”source ↗
“Which would you choose for hot Oklahoma in a 2400 sq ft home we will be in for at least 5 years?”source ↗
“Our old Lennox Merit coil is leaking and needed replacement for a second time. Problem is the coil is on back order. Since the Lennox was problematic, we decided to replace.”source ↗
“Looking for some opinions from HVAC pros on three quotes I received in the GTA, Ontario.”source ↗
“At this point I’m primarily deciding between Quote 1 and Quote 2.”source ↗
“It turns out with all this extra work, an 80% furnace is ~2k$ more than the high efficiency.”source ↗
“I obtained two different HVAC company quotes and for both the 80% is more expensive.”source ↗
“I've flip flopped on which to get so many times at this point would just like some help making the right, and hopefully final, decision.”source ↗
“I hate the fact that the blower is loud and sudden stop/start..”source ↗
“Im planning on installing multiple mini splits in my house and they would all use the same inverter.”source ↗
“My question is that would the converter be using more energy than needed if only one split is being used at a time?”source ↗
“I'm looking to replace a 2.5 ton system, budget is up to $15k for a complete install.”source ↗
“My main concern is noise and humidity.”source ↗
“The condenser is right outside the bedroom, which is also my office.”source ↗
“Replacing my 25 year old HVAC system and deciding between going heat pump or sticking with the furnace system.”source ↗
“Is anyone familiar with Goodman brand hvac equipment? We have to replace a 25 yr old Trane unit. One of the bids was for this brand and the price is attractive.”source ↗
“I have been having issues with my AC all summer where it stops cooling.”source ↗
“HVAC guy is saying I need to have 3.5 tons in each. Everywhere I look that seems like too big for my house...”source ↗
“I'm really nervous to spend 7-10k on this replacement and then it be wrong for my house.”source ↗
“money is tight so I want to do it right.”source ↗
Where this came up
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