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HVAC
Reference for gas fireplaces: direct vent, vent-free, and B-vent types.
Open Gas FireplaceHVAC
Reference for heat recovery systems: HRV, ERV, run-around coils, and heat wheels.
Open Heat RecoveryYour specific task is reference for gas fireplaces: direct vent, vent-free, and b-vent types. Open the page, drop your input, get the result — typically under a second.
Your goal is reference for heat recovery systems: hrv, erv, run-around coils, and heat wheels. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Gas Fireplace focuses on reference for gas fireplaces: direct vent, vent-free, and b-vent types; Heat Recovery focuses on reference for heat recovery systems: hrv, erv, run-around coils, and heat wheels. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Gas Fireplace and Heat Recovery work without signup. We only ask for an email if you decide to subscribe to a paid plan.