r/hvacadvice is a subreddit with 285k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses looking for, ac, hvac, replacement, and noise, 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.
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Popular Themes in r/hvacadvice
#1
Advice Requests
: "I have an A.S. in IT, a B.S. in Computer Science, and $20k in debt, but tech is broken. Should I use my past HVAC experience or go to trade school?"
13 posts
#2
Solution Requests
: "Is there supposed to be an air filter inside this door?"
9 posts
#3
Pain & Anger
: "Strong Wire Burning Smell"
5 posts
#4
Money Talk
: "$54k HVAC replacement quote — does this setup/pricing look reasonable?"
2 posts
Popular Topics in r/hvacadvice
#1
Looking For
18 posts
#2
Ac
: "New construction Ac unit has 4 major failures in 5 months. Should we demand a replAcement?"
12 posts
#3
Hvac
10 posts
#4
Replacement
6 posts
#5
Noise
: "Wood boiler pump Noise"
6 posts
#6
Frustrating
5 posts
#7
Furnace
: "Advice needed: replace ECM variable speed genteq blower motor or replace the whole York Furnace"
5 posts
#8
Struggling
4 posts
#9
Leak
: "HVAC water Leaks"
4 posts
#10
Thermostat
3 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
AC
: "Cheap aftermarket condenser fan motor, 6 months in"
36 posts
#2
General
: "Working while going to trade school, boss doesn’t like it."
12 posts
#3
Furnace
: "Advice needed: replace ECM variable speed genteq blower motor or replace the whole York furnace"
6 posts
#4
No cooling
: "Insulation inside 2 day old unit"
5 posts
#5
Filters
: "Filters? IQAir Perfect 16 - help pls!"
3 posts
#6
Quotes
: "Looking for opinion on replacing an HVAC and natural gas furnace with a heat pump"
3 posts
#7
Heat Pump
: "Mitsubishi Ducted - Coil Frost + Overcooling - Possible fix"
3 posts
#8
Water Heater
: "Rheem Water Heater - no spark to light pilot"
2 posts
#9
Thermostat
: "Aprilaire dehumidifier WIFI but only with thermostat?"
2 posts
#10
Electrical
: "Need help with a Chili Cheese machine"
1 post
Member Growth in r/hvacadvice
Yearly
+94k members(48.9%)
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Last updated: September 15, 2026