Fogatti 7.5 GPM
The Fogatti 7.5 GPM is the InstaGas Comfort 170 — a budget indoor propane tankless rated at 170,000 BTU/h and up to 7.5 GPM, non-condensing, with servo-driven temperature control holding ±1 °F. On paper it's a lot of hot water for the money: enough BTU to run two to three fixtures in a warm climate, in a compact wall-mount cabinet with 3-inch power venting.
The honest caveat is reliability. Across roughly 390 owner reviews it averages about 3.5 stars — noticeably below the mainstream propane brands. Recurring themes for budget propane tankless like this include a minimum activation flow that can drop small trickles, cold-water "sandwich" between draws, temperature swings, and occasional error codes or shorter service life. When it works it's a genuine bargain; the question every buyer should weigh is whether the lower price is worth the softer reliability record. As a non-condensing unit it also needs stainless venting and gives up efficiency to condensing models.
Key Features
Best Use Cases
Our Verdict
A high-output propane tankless at a bargain price, with a reliability record to match the price — about 3.5 stars across hundreds of owners. Reasonable for a warm-climate home, a workshop, or a budget-first buyer who accepts some risk; if you want set-and-forget dependability, spend up to a mainstream brand. Verify your propane supply can feed 170,000 BTU/h.
What owners report
Themes summarized from verified-purchase reviews across major retailers (3.5★ average, 390 ratings). These are aggregated owner opinions — not our own bench testing.
Satisfied owners emphasize a lot of hot-water output for a low price, calling it a strong value for cabins and warm-climate homes.
The ~3.5-star average across ~390 reviews reflects a meaningful share of owners reporting faults, temperature swings, or shorter-than-hoped life.
As with most budget propane tankless, low trickle flows may not trigger the burner, and brief cold slugs can appear between draws.
Owners report uneven customer service — keep documentation and register for the warranty.
Fogatti 7.5 GPM FAQ
Why is the rating only about 3.5 stars?+
Budget propane tankless units like this trade some reliability for price. Across ~390 reviews owners split between happy value-buyers and those reporting faults, temperature swings, or early failures — go in with realistic expectations.
How much hot water does it really provide?+
Up to 7.5 GPM with warm inlet water — enough for 2–3 fixtures — but flow drops to about 4–5 GPM in cold weather. It's non-condensing, so efficiency is lower than a condensing unit.
What venting does it need?+
3-inch stainless power venting (it's non-condensing — PVC is not allowed), plus 3/4-inch gas and water connections and a propane supply sized for 170,000 BTU/h.
How is this different from the InstaGas 170 LP listing?+
They're closely related 170,000-BTU propane units; this Comfort listing is the value model with the larger review base, while the InstaGas Classic (FDG-CF170W-LP) is the CSA-certified 120 V AC indoor version.
Sources
Price range from leading retailers
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