Invisible heating and cooling
for period homes.

Completely hidden within your existing fireplace and chimney. Nothing visible. Nothing compromised.

Check your eligibility A few short questions · No commitment required

Summers are getting hotter and period homes were never built for this.

Why Ruma?

01

Beautiful rooms deserve beautiful solutions

No plastic units. No boxed pipework. No compromise to the architecture you love.

02

Installation that works with your home, not against it

Ruma routes through the chimney void that's already there. Minimal disruption. The room stays perfect.

03

The infrastructure was always there

Your chimney cavity is the perfect conduit for a complete climate system. Ruma simply uses what your home already has.

Your fireplace looks beautiful. But the chimney behind it has been doing nothing for decades. Ruma routes a complete climate system through that existing cavity - delivering full heating, cooling and air purification, with nothing visible anywhere in your home.

The first installation is complete.

Victorian period living room with marble fireplace

Now we're selecting who comes next.

Ruma is not available off the shelf. We are selecting a small number of properties for our next phase. If this sounds like your home, we'd like to hear from you.

  • First installation complete, London 2026 - now selecting next properties
  • Listed buildings and conservation areas welcome
Victorian period living room with marble fireplace

Apply

Think your home
could be next?

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

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