Can I link my HVAC blog or product page in a comment?
No. The “Ads” rule bans links to your blog and specific products for sale on other websites, and the post will be removed and the user banned.
Subreddit guides
r/hvacadvice rules, stats, and what to post
A source-backed Rankhog guide to r/hvacadvice: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 296,684
- Verified
- October 12, 2026
- Category
- Homeowner and construction communities
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- Ads: No advertising is permitted here - as in do not post links to your blog, specific products for sale on other websites, etc. The post will be removed and the user will be banned. Reddit commonly removes amazon, alibaba and many types of google links - the mods have not. We will not police automatically removed comments and re-approve them.
- Reddit: Please follow all sitewide rules and reddit etiquette.
- Crossposts: Do not crosspost between r/hvac, r/hvacadvice and r/thermostats. Pick one and go with it. r/hvac is not open to end user or out-of-the-trade questions.
- Transparency and safety: Professional HVAC techs in this sub need to be verified - follow the procedure in the sticky post to get your flair. There will be a **zero tolerance** policy regarding advising anyone to disconnect/bypass/remove any safety switch or device. All advice given in or as a result of this forum needs to be done in public. "DM me," "I will message you" or any similar reply is grounds for an immediate 30 day ban. Further violations will be a permanent ban.
- Blacklist: **Please check the blacklisted topics sidebar for an updated list.**
- Civility: This is a homeowner's advice forum. Keep politics, name calling and other rude behavior out of it.
Works well
- Answer a homeowner question in the comments with plain, public advice and no links.
- Share a lesson you learned from your own HVAC problem as a story, with no product mention.
- Ask a genuine question about your own system to learn how customers talk about it.
- Explain a general concept like maintenance basics in a comment, keeping everything in the thread.
- Help people troubleshoot in public comments so the whole thread benefits.
Avoid
- Posting any link to your blog or a product for sale, which is an ad and gets you banned.
- Asking anyone to DM you or offering to continue advice in private messages.
- Suggesting someone disconnect or bypass a safety switch or device.
- Crossposting the same question to r/hvac or r/thermostats.
- Getting into politics, name calling, or rude behavior in the comments.
- Posting about a topic on the blacklisted topics sidebar without checking it first.
What r/hvacadvice Is For
This is a community for homeowners, renters, tenants, business owners, or anyone with a general question about their HVAC system. People come here to ask for help with heating and cooling problems in their own homes and buildings. The description says to read the rules before posting, and the rules make clear this is a homeowner's advice forum. Verified professional HVAC techs can get flair and answer questions, so the room mixes people with broken furnaces and the folks who fix them for a living. It is an advice space, not a place to sell things.
Rules That Matter Before Posting
The big one for anyone marketing adjacent is “Ads”, which says no advertising is permitted, including links to your blog or specific products for sale on other websites, and the penalty is removal plus a ban. “Transparency and safety” matters just as much, because all advice must happen in public and any reply like DM me or I will message you gets an immediate 30 day ban, with a permanent ban after that. The same rule has zero tolerance for advising anyone to disconnect, bypass, or remove a safety switch or device. “Crossposts” tells you to pick one subreddit among r/hvac, r/hvacadvice, and r/thermostats and stick with it. “Blacklist” asks you to check the blacklisted topics sidebar for an updated list before posting. “Civility” keeps politics and name calling out, and “Reddit” requires you to follow sitewide rules and etiquette.
What To Post
A good post here looks like help, not marketing. If you know HVAC, answer questions in the comments with plain, public advice and leave your links out. If you are a founder building something in this space, you can learn a lot by reading what homeowners actually struggle with, and you can earn goodwill by being genuinely useful with no strings attached. Ask your own honest questions if you have a real HVAC problem of your own. Share what you learned from a repair or a mistake as a story, not as a pitch. Keep every piece of advice in the public thread, and never suggest anything unsafe.
What To Avoid
Do not post links to your blog or to products for sale, because “Ads” says that gets the post removed and the user banned. Do not ask anyone to DM you or offer to message them privately, because “Transparency and safety” treats that as an immediate 30 day ban and repeat violations become permanent. Never advise anyone to disconnect, bypass, or remove a safety switch or device, since that rule has zero tolerance. Do not crosspost the same question to r/hvac or r/thermostats, because “Crossposts” says to pick one and go with it. Keep politics, name calling, and rude behavior out of your posts and comments per “Civility”. Check the blacklisted topics sidebar before posting, because “Blacklist” points to an updated list there. Do not expect moderators to re-approve a comment that Reddit's automatic filters removed, since the rules say they will not police those.
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Common questions about r/hvacadvice
Can I offer to help someone over private message?
No. “Transparency and safety” requires all advice to happen in public, and a reply like DM me or I will message you is grounds for an immediate 30 day ban, then a permanent ban for further violations.
Can I post the same question in r/hvac and r/thermostats too?
No. “Crossposts” says do not crosspost between r/hvac, r/hvacadvice, and r/thermostats, pick one and go with it.
What if my link gets automatically removed by Reddit?
The rules say Reddit commonly removes Amazon, Alibaba, and many types of Google links, and the mods will not police automatically removed comments or re-approve them, so assume a filtered link is gone.
Can I suggest a quick workaround that involves a safety switch?
Never. “Transparency and safety” has a zero tolerance policy on advising anyone to disconnect, bypass, or remove any safety switch or device.
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