Made for shallow fireplaces.
Gas insert · 5.0 on Google · TSSA-registered installs
Enviro · Gas Inserts
The maker’s words — “liner not required,” “traditional log set included.”
Under 14″ of minimum depth — built for the shallow zero-clearance fireboxes of the 80s and 90s that most inserts can’t enter.
“Traditional log set included,” a “steel firebox grate,” the E25 surround included too — and “liner not required” behind the glass unless you want the brick.
“Standing pilot or IPI versions available” — and the “convection fan is included with the IPI version.” An “up to 50% turn down valve” on both.



Photography: Enviro
From our Enviro files — in place, and the fire up close. Tap to step inside.
Will it fit?

The maker’s numbers
These are the numbers we install to — every number above is Enviro’s own published figure, nothing rounded by us, nothing guessed. Ask us for the maker’s brochure and the owner’s manual — on hand at the showroom. Or ask us anything at the showroom.
The Enviro Gas Inserts
The portrait one. A window higher than it is wide.
20,000 BTU Small insert · 1,200 ft²The small one. Cast-iron heart, fluted glow.
23,000 BTUThe shallow one. Liner not required.
You’re hereThe new one. Flames rise through the logs.
32,000 BTU Medium insert · 1,700 ft²The medium flagship. BluIQ, 74.97% efficient.
32,500 BTU Medium insert · 1,700 ft²The medium workhorse. Fifteen faces.
33,000 BTU Large insert · 1,800 ft²The large one. Glass or log burners.
34,000 BTU Large insert · 1,900 ft²The large flagship. BluIQ, ember light.
35,000 BTU Extra large · 2,300 ft²The biggest window in the row.
42,000 BTUReal voices · 5.0 on Google
“…the knowledge and guidance we received in determining size, location and finishing design was invaluable.”
Phil M. · Google review
“As someone extremely particular and fussy I was very pleased.”
Josh R. · Google review
Quick answers
That’s the E25’s whole reason to exist: 27⅞″ × 19¾″ of opening and as little as 13&frac1516;″ of depth. If other inserts have been turned away from your firebox, measure again and bring us the numbers.
No new chimney — your existing one does the work. We run two continuous liners down it (a co-linear direct-vent pair, 3″ each): one brings combustion air in, the other takes exhaust out, and the firebox stays sealed from your room. We sweep and inspect the chimney first, and every gas connection is made by TSSA-registered technicians.
The standing-pilot version keeps a small always-on flame and the simplest controls; the IPI version lights electronically and includes the convection fan. We’ll match the version to how you actually use the room.
What it costs
Every wall is different — framing, venting, gas line — so your price is real, not a guess.
Two minutes online. Photos help; the booking machine takes them.
Dan prices your exact install and walks you through every line of it.
Nick’s crew frames it to the maker’s spec, runs the venting, and leaves the room clean.
Or come see it in our Coldwater showroom — the espresso will be on.
Beyond the insert row
Twelve built-in gas fires live on the walk today — linears, clean-face squares and traditionals from the same maker.
See the fireplaces → The freestanding houseSix freestanding gas stoves — cast iron and steel, from the little S20 to the Westport.
Meet the stoves → Prefer to burn wood?Eight wood fires from Belgium — stoves, inserts and the guillotine fireplaces, WETT-certified installs.
Walk the Stûv house →