Warmflow Engineering Ltd
WS18
| HETAS ID: | J51305 |
|---|---|
| App. Type: | Independent Boilers |
| Fuel Type: | Pellet, - |
| Certificate Ref: | AA-2014-39/01 |
| Std. Tested to: | BS EN 303-5:2012 |
| Hearth Req: | Constructional |
| Manufacturer Address: | Lissue Industrial Estate, Moira Road, Lisburn, Northern Ireland, BT28 2RF |
|---|---|
| Manufacturer Email: | [email protected] |
| Telephone Number: | 028 9262 1515 |
Performance
HETAS has audited and verified that all applicable clauses in the test report have been passed in respect of the materials, design, and construction in accordance with the relevant BS EN type test standard for the appropriate technology, performance criteria of which is below;
| Net Efficiency - Pellet - Full Load | 92.9% |
|---|---|
| Gross Efficiency - Pellet - Full Load | 85.7% |
| Net Efficiency - Pellet - Part Load | 90.1% |
| Gross Efficiency - Pellet - Part Load | 83.1% |
Environment
In support of reducing the impacts of particulate emissions on the UK's overall air quality targets, HETAS “Cleaner Choice” appliances have been independently verified as exceeding the current requirements for UK smoke control areas for particulate matter, including PM2.5's by 50% of that required by DEFRA;
89%
Improvement on Clean Air Act Particulate Limit – Full Load
98%
Improvement on Clean Air Act Particulate Limit – Part Load
Safety
The product certified has been assessed for its suitability for installation in domestic properties against the requirements of the Building Regulations and appropriate standards. The performance of the appliance has been verified as meeting the following technical performance attributes;
| Combustible Clearances - Rear | 100 mm |
|---|---|
| Combustible Clearances - Side | 50 mm |
| Hearth Temperature | > - |
| Appliance Spigot SIze | 80 mm |
| Minimum Flue Diameter | 125 mm |
| Recomended Flue Draught | 15Pa |
| External Air Supply Compatible | *No |
*HETAS product approval is not valid for appliances fitted with an external air supply ducted directly to the appliance. The installer should reference HETAS technical note TN_0020 General Guidance for the Installation, Risk Assessment & Commissioning of Solid Fuel Appliances with a Dedicated External Air Supply for more information.
Technical Data
The purpose of this HETAS Stove Approval Scheme is to help consumers, retailers, installers and others to identify stoves with lower particulate (PM) emissions. There are concerns that small particle emissions known as PM2.5 to PM10 can be harmful. For that reason, we are operating a scheme which only accepts appliances that are tested to emit lower emissions compared to the current legal requirements. We have chosen to set the bar for entry at 50% less emissions than required for exemption for use in smoke control areas in the UK. We also note that Ecodesign legislation has differing, but important limits for other emission and any appliances listed here must meet those requirements as well as exceeding the particulate emission values for exemption by at least 50%.
Additionally, the product certified has been assessed for its compliance against the legal requirements for emissions and efficiency stipulated within the Ecodesign regulations. The performance of the appliance has been verified as meeting the following environmental attributes;
| PM - Pellet | 16 mg/m3 |
|---|---|
| OGC Emissions - Pellet | 6 mg/m3 |
| CO Emissions - Pellet | 70 mg/m3 |
| NOx Emissions - Pellet | 141 mg/m3 |
| Seasonal Efficiency - Pellet | 81.4% |
Appliance Dimensions
| Height | 1135mm |
|---|---|
| Width | 650mm |
| Depth | 1170mm |
Technical Downloads
Copies of the associated manufacturer technical literature, energy labels, instruction and operating manuals and supporting documentation on performance and safety can be found by following the links below.
| Instruction Manual Reference | Boiler Manual - Wood Pellet Boiler WS18/WP18-01.02.2015-v4 |
|---|---|
| DoP Cerificate Referece | WDC035 |
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