Dorchester DR-FC Evo condensing water heater
Fully automatic, condensing direct fired water heater for domestic hot water.
7 models available with continuous outputs (@44°C ∆T) of 600, 630, 970, 1200, 1700, 2000 & 2400 l/h.
Product information
- Power outputs 30-119kW and storage capacities of 227-504 litres.
- Safe and clean domestic hot water generation.
- Reduces energy use and running costs by maximising condensing water heater performance.
- Meets the strict standards for efficiencies and NOx emissions in new buildings.
- Ultra-quiet operation means it can be installed close to point of use without disturbance to occupants.
- Closely matches hot water demand, reducing wastage.
- Down firing pre-mix modulating burner reduces the risk of scale build up impacting on the heat transfer.
- Large range of time and temperature control features built in as standard.
- Electronic Anode fitted as standard.
- Natural gas and lpg water heater options.
- Easy access for service and maintenance.
- Full project assistance available from our dedicated hot water expert to help 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.
- Long term commitment to spare parts.
- Water heater BIM objects available to assist in project design and management
- Available for next day delivery (dependent on stock availability, charges apply, order cut-off 12pm).
Technical data
| Units | DR-FC Evo 25 | |
|---|---|---|
| Energy | ||
| Building Regulations thermal efficiency gross | % | 96 |
| ErP efficiency rating (modules ≤ 70 kW only) | - | A |
| Heating-up time, ΔT = 44°C | min. | 23 |
| Heating-up time, ΔT = 50°C | min. | 26 |
| Heating-up time, ΔT = 55°C | min. | 29 |
| Standby losses | kW/24h | 4.2 |
| Water | ||
| Continuous output with 44°C ΔT | l/h | 600 |
| 1st hour output with 44°C ΔT | l | 730 |
| Continuous output with 50°C ΔT | l/h | 530 |
| 1st hour output with 50°C ΔT | l | 630 |
| Continuous output with 55°C ΔT | l/h | 480 |
| 1st hour output with 55°C ΔT | l | 560 |
| Storage capacity | litres | 227 |
| Maximum operating water pressure (open vented) | bar | 8 |
| Maximum operating water pressure (unvented) | bar | 5.3 |
| Expansion relief valve setting (unvented kit) | bar | 6 |
| ErP load profile | - | XXL |
| Nat Gas | ||
| Input, gross – maximum | kW | 31.6 |
| Output – maximum | kW | 30.5 |
| Gas inlet pressure – nominal | mbar | 20 |
| Gas flow rate – maximum @1013.25 mbar and 15°C | m3/h | 3.1 |
| LPG | ||
| Input, gross – maximum | kW | 31 |
| Output – maximum | kW | 30.5 |
| Gas inlet pressure – nominal | mbar | 37 |
| Gas flow rate – maximum@1013.25 mbar and 15°C | kg/h | 2.3 |
| Flue | ||
| Approximate flue gas volume @15°C, 9.8% CO2, N.T.P. (Nat. Gas - G20) | kg/h | 51.7 |
| Flue gas temperature – maximum | °C | 45 |
| NOx emission, dry air free,European Class 5. Maximum (at part load) | mg/kWh | 24 |
| Pressure at the flue outlet only (B23) with zero pressure at air inlet | Pa | 52 |
| Electrical | ||
| Start current–maximum (maximum power) | A (W) | 0.59 (135) |
| Run current–maximum (maximum power) | A (W) | 0.2 (45) |
| Electrical supply | Vac | 230 V 1 PH 50 Hz |
| Voltage tolerance | % of Vac | -15% +10% |
| Misc. | ||
| Noise level @2m from flue terminal | dB(A) | <45 |
| Number of (power) anodes | - | 1 |
| Weight when empty | kg | 196 |
| Approximate shipping weight | kg | 215 |
| Maximum floor load/ weight filled with water | kg | 423 |
Downloads
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Dorchester DR-FC Evo brochureProduct brochures 3411 kb |
Download |
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Dorchester DR-FC Evo 25-120 installation manualInstallers guides 4040 kb |
Download |
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Dorchester DR-FC Evo hydraulic schemesHydraulic schematics 249 kb |
Download |
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Dorchester DR-FC-Evo 120 CADCAD 49 kb |
Download |
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Dorchester DR-FC-Evo 25 CADCAD 48 kb |
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Dorchester DR-FC-Evo 30 CADCAD 48 kb |
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Dorchester DR-FC-Evo 45 CADCAD 48 kb |
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Dorchester DR-FC-Evo 60 CADCAD 48 kb |
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Dorchester DR-FC-Evo 80 CADCAD 49 kb |
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Dorchester DR-FC-Evo 95 CADCAD 50 kb |
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Dorchester DR-FC-Evo seasonal efficiency sheetSeasonal efficiency sheets 86 kb |
Download |
Ideal uses/applications
- New build projects.
- Large commercial and public buildings including schools, hospitals and hotels.
- Locations with substantial and continuous hot water demands including hospitals, hotels and sports facilities.
- To see where Dorchester condensing water heaters have been used, visit the case study section of our website.
Optional extras
- Unvented water supply kit - essential for any unvented application and includes an expansion vessel sized for the water heater and local pipework only.
- Top to bottom pump recirculation pump kit to prevent stratification and protect against legionella within the water heater.
- Remote monitoring unit.
- Room Sealed Flue Systems:
- Concentric flue systems type C13–Horizontal termination.
- Concentric flue systems type C33–Vertical termination.
- Twin duct flue systems type C53–Vertical flue termination with Horizontal air inlet.
- Conventional Open Flue Systems:
- Open flue systems type B23–Vertical termination.
- Choose from a wide range of service contracts to help maintain optimum performance.
- Ensure your new Hamworthy products are set to our recommendations and benefit from improved warranty terms with a commissioning package.
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Case studies
Bourne View Care Home
Sector: Care homes
Project: The prestigious local care home in Art Deco style was opened in April 2019 and looking for reliable boilers and water heaters to keep the future residents safe.
Building: New build care home
Application: Space heating 382kW, DHW 1,940 l/h l/h
Learn more
Abbey Hill Academy
Sector: Education
Project: The special needs school benefitted from the Condition Improvement Fund to refurbish their old school heating and hot water system.
Building: Special needs school refurbishment
Application: Space heating, 360kW, direct fired DHW
Learn more
Nottingham University
Sector: Education
Project: A four million pound development has seen the construction of two new sports pavilions with a high demand for hot water.
Building: New build, sports complex
Application: Space heating, domestic hot water
Learn more
Molesey Hospital
Sector: Public sector
Project: NHS Surrey embarked on a programme of upgrade to their heating and hot water systems across more than twenty sites.
Building: Hospital refurbishment
Application: Space heating, 140kW. Water heating 1,269l/h
Learn more
Drayton Manor Hotel, Staffordshire
Sector: Hotel and leisure
Project: Guests benefit from the installation of three new Dorchester DR-FC Evo water heaters and two Ensbury LT 370 low temperature steel boilers.
Building: New build hotel
Application: Domestic hot water, 5787 litres/hour. Space heating, 740kW
Learn more