Why this site exists
Almost every well-ranked source on home heating and cooling is owned by someone who sells installation, or who sells leads to someone who does. That is not a scandal, it is a business model — but it quietly decides what they are able to publish. They cannot comfortably tell you that a pre-charged DIY kit is fine for your spare room, that your ten-year-old unit is worth repairing rather than replacing, or that the budget brand is adequate for a garage.
So the questions homeowners actually ask — can I do this myself, do I really need to replace it, what should this honestly cost — get answered by forum threads and video comments, or not at all.
plainhvac exists to answer those questions directly. The name is the promise: plain answers, including the ones that lose us money.
Who writes this
This site is written by Riduan El Hajjouji.
I am not an HVAC technician. I do not install these systems, I have no trade certification, and I am not going to invent a backstory that suggests otherwise. I am telling you this at the top rather than burying it on a page nobody reads, because it should change how you read everything else here.
I also do not live in the country most of these prices come from. I write from Belgium about four markets — the United States, Canada, the United Kingdom and Australia — and I am not going to pretend that a European reads an American utility bill by instinct.
Those two facts are the reason this site works the way it does. I cannot fall back on I have seen a hundred of these, so nothing here rests on that. Instead:
- Every cost figure carries a label saying whether it was measured, quoted or sourced, with the date and the region it applies to. You can check each one.
- Technical limits come from manufacturer installation manuals, not from other blogs repeating each other.
- Where manufacturers disagree, the article says so instead of quoting one brand as if it were universal.
- Where a job stops being something a homeowner can legally do, the article stops with it.
- Where a comparison is documentary rather than hands-on, it says which.
That method is set out in full on the editorial standards page, and it is the honest basis for trusting anything here. Not credentials. A method you can audit.
If that is not enough for the decision in front of you — and for a five-figure installation it may well not be — get a qualified person to look at your actual building. This site will tell you what to ask them.
Technical review
This site does not currently carry review by a certified HVAC technician. Building that is the priority. Until an article names a reviewer at the foot of the page, treat it as researched and sourced, not professionally verified.
If you work in the trade and want to review, correct, or argue with something here, please get in touch. That is a genuine invitation, not a formality.
How the site works
Our method and the labels on every figure: editorial standards. What we cover and where we stop: safety and scope. How the site is funded: advertising disclosure. What data is collected: privacy policy.
Contact
Corrections, questions and complaints: hello@plainhvac.com.
Corrections are welcome and get acted on. I would rather be told I am wrong than be confidently wrong in public.