Elm Range

Direct boiler replacement heat pump

Commercial Heat Pumps

Our R290 Elm Heat Pump

Introducing the Elm R290 high-temperature heat pump, a revolutionary solution for your high-temperature heating needs. Engineered as a direct replacement for traditional boilers, the Elm provides up to 80°C flow temperature with a 70°C return, achieving 100% heat decarbonisation without any need for modifications to your existing building infrastructure. Available in 50kW and 70kW models, it uses eco-friendly R290 propane refrigerant.

Key features include low noise options, wall-mounting capabilities, leak detection, and advanced smart remote monitoring. The Elm is ideal for seamless decarbonisation and integration into bi-valent systems, delivering exceptional

performance and efficiency.

All our heat pumps use natural refrigerant for the lowest environmental impact and are manufactured in the UK with full support provided by our Engineers here in the UK.

Elm Benefits:

Direct replacement for a boiler
Flow temperature up to 80°C with 10-12°C temperature differential
Remote monitoring and smart enabled
100% heat decarbonisation without building modifications
R290 propane refrigerant with ultra low GWP
75/60 and 105/70kW at +7°C / -5°C ambient
Standard and low noise options
Optional wall-mountable design
Leak detection system
Eco-friendly R290 propane refrigerant with ultra-low GWP
COPs in line or better than any similar alternative cascade
Defrost types: Hot Gas (for +6°C)
Sound Power: Low Noise (68.7 dB(A)), Standard Noise (73.7 dB(A))

Non Flammable

Natural

R290

Low GWP

80C Water

Elm Heat Pump Models

Elm 75/60

Key Features:

Refrigerant Type: R290 Propane
Flow Temperature: 80°C
Sound Pressure at 1 metre Low Noise: 50.7 dB
Outputs at -5°C & +7°C: 75 kW & 60 kW
Noise: Low and standard noise models

Elm 105/70