r/hvacadvice is a subreddit with 298k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses hvac, looking for, struggling, replacement, and ac, and they frequently recommend/review smart thermostat, thermostat, and hvac.
A place for homeowners, renters, tenants, business owners or anyone with a general question about their HVAC system.
Please read rules before posting!
Popular Themes in r/hvacadvice
#1
Solution Requests
: "Recommendations for duct sealant"
9 posts
#2
Advice Requests
: "Mixed advice on HVAC"
4 posts
#3
Pain & Anger
: "HVAC technician claims my heat exchanger is cracked"
2 posts
Popular Topics in r/hvacadvice
#1
Hvac
23 posts
#2
Looking For
17 posts
#3
Struggling
6 posts
#4
Replacement
5 posts
#5
Ac
4 posts
#6
Thermostat
3 posts
#7
Heat Pump
3 posts
#8
Hvac System
2 posts
#9
Mini Split
2 posts
#10
Furnace
2 posts
Products Discussed in r/hvacadvice
Smart Thermostat
79 reviews
#1
Ecobee
4.4★ from 34 reviews
#2
Honeywell
3.8★ from 20 reviews
#3
Nest
3.4★ from 10 reviews
Thermostat
46 reviews
#1
Ecobee
4.4★ from 18 reviews
#2
Honeywell
4.2★ from 17 reviews
#3
Thermostat
1.0★ from 1 review
Hvac
15 reviews
#1
Ecobee
3.7★ from 3 reviews
#2
Trane
3.7★ from 3 reviews
#3
Honeywell
3.0★ from 2 reviews
Flair Used in r/hvacadvice
#1
Furnace
: "How hard would it be to change my own furnace?"
11 posts
#2
AC
: "Can I safely add sound insulation?"
5 posts
#3
General
: "Humidifier and other work"
5 posts
#4
Heat Pump
: "Installer claims Daikin U4 error is caused by setting one unit to heat and one to cool, is that even possible?"
4 posts
#5
No cooling
: "is this right? i’m getting heat on both cooling and heating"
2 posts
#6
Thermostat
: "Upgrading 2 wire to smart thermostat"
2 posts
#7
Electrical
: "Reme HALO LED"
2 posts
#8
Filters
: "HVAC air purifier"
1 post
Member Growth in r/hvacadvice
Yearly
+102k members(52.3%)
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About
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This page gives a focused view of r/hvacadvice, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: October 15, 2026