r/hvacadvice is a subreddit with 300k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses looking for, hvac, 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.
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Popular Themes in r/hvacadvice
#1
Advice Requests
: "Help"
11 posts
#2
Solution Requests
: "Triangle Tube Prestige Solo 110 (MCBA control) – leaking factory LWCO pressure switch; looking for replacement or retrofit advice"
5 posts
#3
Money Talk
: "$3k job for air scrubbers...rate the job?"
4 posts
#4
Pain & Anger
: "Did I just get hosed?"
2 posts
Popular Topics in r/hvacadvice
#1
Looking For
17 posts
#2
Hvac
15 posts
#3
Struggling
6 posts
#4
Replacement
4 posts
#5
Ac
4 posts
#6
Hvac System
2 posts
#7
Mini Split
2 posts
#8
Furnace
2 posts
#9
Ac Struggling
2 posts
#10
Cooling
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
: "Help Urgently needed"
12 posts
#2
General
: "Fan coil replacement … how important is containment?"
10 posts
#3
Thermostat
: "I have a 5000w 240V shop heater. Looking for a smart thermostat for it."
5 posts
#4
AC
: "Can I fix this with tape?"
5 posts
#5
Heat Pump
: "Just looking for a gut check on transition from oil to heat pump"
3 posts
#6
Boiler
: "Low mass boiler on hard water?"
2 posts
#7
Quotes
: "Garage heater install question"
2 posts
#8
Filters
: "What maintenance for this filter?"
1 post
#9
Water Heater
: "Water Heater Recommendation"
1 post
Member Growth in r/hvacadvice
Yearly
+100k members(50.2%)
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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: November 5, 2026