The Enviro S20 head to toe in a black studio void — a compact steel stove, its upright window of split-log fire glowing, flue rising into the dark

S20

The little stove with a real fire in it.

Freestanding gas  ·  5.0 on Google  ·  TSSA-registered installs

Enviro · Gas Stoves

Small corner, real flame.

Enviro’s compact freestanding stove — a window taller than it is wide, 20,000 BTU behind it. The fireplace for the room you thought was too small.

I

An upright window

16½ by 18¾ inches of glass, taller than it is wide — the S20 reads like a lantern, not a television.

II

Guarded, invisibly

“Clear View Safety Screen” in Enviro’s words — the glass is guarded without a cage over the fire.

III

Fluted and fanned

A “charcoal fluted liner” behind the flame, and a 150 CFM convection fan pushing the heat into the room.

The S20’s upright glass dead-on — split-log fire on the charcoal fluted liner
Clean face · fluted liner
The S20’s split logs over a glowing ember bed, up close
Split logs · ember glow
The complete S20 head to toe on the studio void — the hero portrait, plinth base to flue
Head to toe · plinth base

Photography: Enviro

Seen in real rooms.

From our Enviro files — in place, and the fire up close. Tap to step inside.

The little stove, loft light
On its pedestal
Fluted glass, small fire
Logs, up close

Will it fit?

A stove-sized footprint.

The complete Enviro S20 at a gentle angle on the studio void
34″ tall (maker’s dims) 25″ wide
20,000BTU/h max input (NG)
1,100 ft²heating area, maker’s figure
74.5%P4 efficiency, maker’s figure
4″ · 6⅝″co-axial direct vent

The maker’s numbers

Specifications

20,000 BTU/h NG · 18,500 LPMaximum heat
16½″ w × 18¾″ hGlass viewing area
25″ w × 34″ h × 19″ dThe body

The fire

Fuel
natural gas or propane
Max input
20,000 BTU/h NG · 18,500 LP
Min input
13,600 NG · 14,500 LP
Efficiency (maker’s P4)
74.5%
Heating area (maker’s)
1,100 ft²

The look

Log set
ceramic split logs
Liner
charcoal fluted

The opening

Glass
16½″ w × 18¾″ h
Body
25″ w × 34″ h × 19″ d
Clearances (manual)
8″ side · 4″ back · 3″ corner
Floor
0″ on hard surfaces

The hookup

Convection fan
150 CFM
Venting
4″ intake · 6⅝″ exhaust, co-axial direct vent

These are the numbers we install to — every number above is Enviro’s own published figure, nothing rounded by us, nothing guessed. Download the maker’s manual (C-15103 R4). Or ask us anything at the showroom.

The Enviro stoves

Pick your size.

Real voices · 5.0 on Google

Installed by the crew people write about.

“…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

The three things everyone asks.

Do I need a chimney?

No. The S20 is direct vent — a 4″ intake and 6⅝″ exhaust run out a wall or up through the roof. No masonry, no liner, no sweeping.

How close to the wall can it sit?

Closer than any wood stove could: the manual’s clearances are 8″ to a sidewall, 4″ to the back, 3″ in a corner, and 0″ to a hard floor. Send us a photo of your corner and we’ll confirm the fit before you spend a dollar.

What’s the upkeep?

No wood to haul, no ash to sweep. Like any gas stove it wants an annual service — that’s our trade, and the crew that installs it does it.

What it costs

Priced to your home — not from a chart.

Every home is different — venting run, gas line, hearth — so your price is real, not a guess.

Tell us about your corner

Two minutes online. Photos help; the booking machine takes them.

Get your real quote

Dan prices your exact install and walks you through every line of it.

Installed by the pros

Nick’s crew sets it to the maker’s spec, runs the venting, and leaves the room clean.

Request 2026 pricing

Or come see it in our Coldwater showroom — the espresso will be on.

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