Dorchester DR-RS room sealed direct fired water heater
Room sealed fully automatic direct fired atmospheric water heater for domestic hot water.

Available in 5 models with continuous outputs (@44°C ∆T) of 507, 811, 1293, 1740, 1960 l/h.

  • Power outputs 25-100kW and storage capacities of 265-324 litres.
  • Simple and safe domestic hot water generation
  • Ideal for ventilation limited rooms
  • Reliable hot water when you need it
  • Can be installed close to the point of use
  • Natural gas and lpg water heater options
  • Easy access for service and maintenance.
  • Full project assistance with hot water sizing and selection of equipment to match the application.
  • Extensive back up and support from our team of experienced engineers across the UK.
Contact us today to discover our wide range of water heaters.
  Title Type Size  
Dorchester DR-RS water heater brochure Dorchester DR-RS water heater brochure Product brochures 748 kB Download
Dorchester DR-RS water heater dimensions Dorchester DR-RS water heater dimensions Dimensions 157 kB Download
Dorchester DR-RS water heater technical data table Dorchester DR-RS water heater technical data table Data tables 53 kB Download
Dorchester DR-RS installation manual Dorchester DR-RS installation manual Installers guides 2497 kB Download
Dorchester DR-RS thermal efficiency sheet Dorchester DR-RS thermal efficiency sheet Seasonal efficiency sheets 85 kB Download
Dorchester DR-RS 25 front view Dorchester DR-RS 25 front view CAD 14 kB Download
Dorchester DR-RS 25 plan view Dorchester DR-RS 25 plan view CAD 11 kB Download
Dorchester DR-RS 25 side view Dorchester DR-RS 25 side view CAD 14 kB Download
Dorchester DR-RS 40 front view Dorchester DR-RS 40 front view CAD 13 kB Download
Dorchester DR-RS 40 plan view Dorchester DR-RS 40 plan view CAD 14 kB Download
Dorchester DR-RS 40 side view Dorchester DR-RS 40 side view CAD 14 kB Download
Dorchester DR-RS 65 front view Dorchester DR-RS 65 front view CAD 14 kB Download
Dorchester DR-RS 65 plan view Dorchester DR-RS 65 plan view CAD 11 kB Download
Dorchester DR-RS 65 side view Dorchester DR-RS 65 side view CAD 14 kB Download
Dorchester DR-RS 85 plan view Dorchester DR-RS 85 plan view CAD 11 kB Download
Dorchester DR-RS 85 side view Dorchester DR-RS 85 side view CAD 14 kB Download
Dorchester DR-RS 105 front view Dorchester DR-RS 105 front view CAD 13 kB Download
Dorchester DR-RS 105 plan view Dorchester DR-RS 105 plan view CAD 11 kB Download
Dorchester DR-RS 105 side view Dorchester DR-RS 105 side view CAD 14 kB Download
Dorchester DR-RS water heater wiring diagram Dorchester DR-RS water heater wiring diagram Wiring diagrams 153 kB Download
  • Smaller commercial and public buildings including community schools, care homes, hotels, churches and retail units.
  • Locations with no plant room or minimum ventilation.

  • Unvented water supply kit - essential for any unvented application and includes an expansion vessel sized for the water heater and local pipework only.
  • Flexible replacement anodes
  • Choose from a wide range of service contracts to help maintain optimum performance.