The medium workhorse.
Gas insert · 5.0 on Google · TSSA-registered installs
Enviro · Gas Inserts
The maker’s words — a “clean face look” on the “SIT Valve 820 (standing pilot).”
33,000 BTU into 1,700 ft² at 78.72% steady-state efficiency (brochure, IPI model) — the strongest steady-state figure in the row.
The “SIT Valve 820 (standing pilot)” with an “easy-access burner switch” and “up to 50% turn down valve” — nothing between you and the fire. IPI available too.
Fifteen surrounds — the most in the row — plus seven liners, two of them included. From Slim to the 50″ Cast Plus O/S, your masonry disappears behind the right one.
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 BTU Shallow insert · 1,600 ft²The shallow one. Liner not required.
28,000 BTU Fire-under-log · 1,700 ft²The new one. Flames rise through the logs.
32,000 BTU Medium insert · 1,700 ft²The medium flagship. BluIQ, 74.97% efficient.
32,500 BTUThe medium workhorse. Fifteen faces.
You’re hereThe 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
Same opening as the EX32 — 27⅞″ × 19⅞″ with 16&frac716;″ to 18⅝″ of depth — and fifteen surround options to close the masonry around it, from the 33¼″ Slim to the 50″ Cast Plus O/S.
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.
They are — same opening, same glass. The E30 is the simpler, stronger heater (standing pilot offered, 78.72% steady-state); the EX32 is the showpiece (BluIQ remote, UHD logs, ember lighting). Same hole, two philosophies.
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 →