Service guide
New HVAC system: choosing the right type
Before you compare installers, decide what kind of system you are buying. Four questions narrow it fast.
Get quotes Heat pump vs furnace tool
Written by HYRE HVAC Research Desk Primary-source research, data analysis and fact checking
The short version
New HVAC system choice comes down to four questions: do you have usable ducts, what fuel do you have, how cold do your winters get, and how even do you need the temperature. Answer those and most homes end up with two or three sensible options, not twenty.
The four questions that choose the system
Work through them in order.
Good ducts point to a ducted system. No ducts point to ductless heads. Poor ducts mean a duct fix belongs in the budget. See mini split vs central air.
An existing gas line keeps a furnace on the table. All-electric homes usually look at heat pumps.
Cold-climate heat pumps or a dual-fuel setup suit colder areas. See dual fuel.
Variable-speed equipment runs longer at low output, which helps humidity and evens out rooms. See variable-speed compressors.
The common system types in one line each
Furnace plus central AC: gas or oil heat, split-system cooling, shared ducts. Heat pump: one electric machine that heats and cools.
Dual fuel: heat pump with a gas furnace for the coldest days. Ductless mini splits: wall or ceiling heads, no ducts. Boiler: hot-water heat, often with separate cooling. Geothermal: a heat pump using a ground loop.
Whichever you choose, the install decides performance. The US Department of Energy reviewed 44 field studies and found that 70-90% of AC and heat pump systems had an installation or maintenance fault.
Measured field performance of central AC ran at 59-84% of rated SEER. The rating on the box is what the system can do; the installation decides what it does.
Red flags when a seller recommends a system
Signs the advice is about the sale, not the house.
Most houses have at least two workable choices.
Ask for estimated running cost at your energy prices.
A system chosen without looking at the house is a guess.
What drives the price of a new HVAC system
HyreHVAC does not publish a price for a new HVAC system. We do not yet hold enough sourced, dated quotes to give a figure we can stand behind.
System type is the biggest driver, then capacity, efficiency, duct and electrical work. Our HVAC cost guides explain each driver, and the hvac cost calculator lets you work through your own numbers.
What happens after you ask
You fill in the HVAC options form with the job and your zip code. HyreHVAC is a publisher, not a contractor, and contractor matching is still being built. Until it is, treat the form as an inquiry. Keep getting your own written quotes and check each installer’s licence with your state board.
Get connected
Tell us about the work
Three short steps: the job, your home, and how to reach you. Nothing goes to an HVAC company unless you agree.
A person reads it and replies, free and with no obligation. Matching is not live yet, so this is not a quote. If you smell gas or a CO alarm sounds, leave the house and call 911 or your gas utility first.
Get HVAC Options
A person at HyreHVAC reads the request and replies. Matching with contractors is not live yet, so this is not a quote.
Questions
Which is cheaper to run, a heat pump or a gas furnace?
Do I have to replace the ducts with a new system?
Is a variable-speed system worth it?
How do I know the right size?
Written and audited by
HYRE HVAC Research Desk
Primary-source research, data analysis and fact checking
We are a research desk, not a sales floor. We read the federal microdata file, the statute or the manufacturer data sheet ourselves, and we publish the figure with the document it came from and the date we retrieved it.
Where a number cannot be traced to a primary source, we publish the shorter page and say what we could not verify.
The counts below are generated from the published pages themselves, last counted October 26, 2026, and they are what we have actually published rather than what we intend to.
- 18
- studies published
- 15
- federal sources read and cited
- 15
- studies published with their full dataset as CSV
- 51
- jurisdictions reproduced against EIA’s own tables
How this desk works
- Primary sources only. Federal data comes from the agency that collects it, in the file that agency publishes. We do not cite an article that cites a source; we download the source and compute the figure ourselves.
- We validate against the agency before we publish. First, we use each federal microdata file to reproduce the agency’s own published tables. Our cooling research reproduces EIA’s state estimates and standard errors for all 51 jurisdictions. That check caught a variance formula that was off by a factor of four.
- Every estimate carries its uncertainty. These are survey figures, not counts. Standard errors are computed from the replicate weights the federal file supplies and printed beside the estimate. An estimate too imprecise to publish is reported as such rather than printed.
- Nothing is typed by hand. Prose, tables and charts all read from one dataset built by script, so a number in a sentence and the same number in the table below it cannot disagree.
- We publish the data, not just the conclusion. 15 of our 18 studies offer the full computed table as a CSV download on the page, so you can check the analysis or disagree with it. A study without a row-level dataset gets no download link and claims none in its structured data.
- We correct in public. Where we have published a figure wrongly we fix the figure, rewrite any analysis that rested on it rather than patching the number underneath it, and leave a dated correction note on the page.
- We do not install or sell HVAC equipment, and we take no payment for placement, ranking or a favorable mention. Nobody buys a position on this site.
Data as of Sources checked October 26, 2026. Authorship on this site is organizational: the analysis belongs to the desk rather than to a named individual, and we do not publish credentials we do not hold. Our editorial policy sets out how we source, date and correct what we publish.
Sources & retrieval dates
HyreHVAC is a publisher. We do not install, repair or inspect HVAC equipment and hold no contractor licence. Nothing here replaces an on-site diagnosis by a licensed contractor. Sources are cited with the date they were checked.