A Victorian living room with a black marble fireplace, plaster cornice and sash windows
Ruma.

Modern eco-heating, without the compromise.

A complete heating and cooling system designed for period homes. Installed within the existing fireplace and chimney. Nothing visible inside the room.

Check your eligibility A few short questions · No commitment required

All the comfort and efficiency of modern heating, without changing a single thing about the home you love.

Open fires and gas boilers are both being phased out. The fireplace that takes centre stage in your room has been standing idle for years. Ruma puts it back to work — routing modern eco-heating through the chimney void behind it, with nothing visible anywhere inside the room.

The same kind of period room with nothing on the walls and a fireplace as the focal point
Why Ruma?
01

Beautiful rooms deserve invisible heating

No radiators. No boiler flues. No visible infrastructure of any kind. The room remains exactly as you intended it.

02

Installation that works with your home, not against it

Ruma routes entirely through the chimney void that is already there. Minimal disruption. The fabric of your home stays intact.

03

Up to 400% more efficient than gas

No combustion. No flue. No fossil fuels. Just clean, efficient heat — and a fraction of the carbon of gas.

The first install: a period bedroom with a blue-grey chimney breast, a black cast-iron fireplace and cream fitted wardrobes either side

The first installation is complete.

Would you like to be next?

Ruma is not available off the shelf. We are selecting a small number of properties for our next installation phase. If your home has an existing fireplace and chimney, and you're ready to move away from fossil fuels, we'd love to hear from you.

  • First installation complete, London 2026 - now selecting next properties
  • Period property with existing fireplace and chimney
  • Listed buildings and conservation areas welcome
  • Looking to reduce your reliance on gas or oil heating

Think your home could be next?

Answer a few short questions. We will tell you whether your home is a candidate for our next installation phase.

Begin your eligibility check Takes under 2 minutes · No commitment required

Which best describes your home?

Does your home have a fireplace?

So we can check we cover your area.

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