r/hvacadvice↗
HVAC Advice: Where HVAC Mechanics and Techs can offer advice.
A place for homeowners, renters, tenants, business owners or anyone with a general question about their HVAC system. Please read rules before posting!
299k subscribers3,305 posts / mo in Sep 20262,959 authors / mosince 2016
r/hvacadvice has 299k members (+51% over the last 12 months). It gets about 3,305 posts a month from 2,959 people. Top topics: Car Air Conditioning Issues, Smart Thermostats and HVAC Trades.
When to post on r/hvacadvice
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How r/hvacadvice has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/hvacadvice
Top topics
Share of the subreddit's posts
- Car Air Conditioning Issues1.7%
- Smart Thermostats1.6%
- HVAC Trades0.9%
- Cabin Air Filter Change0.6%
- Apartment Climate Issues0.6%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Supplyhouse
- The Home Depot
- Lowe's
- HVACDirect
- Repairclinic
Everything else about r/hvacadvice
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research