ESSE Engineering Ltd

Lightheart

HETAS ID:	E22760
App. Type:	Roomheater
Fuel Type:	Wood Logs
Certificate Ref:	AA-2023-27/01
Std. Tested to:	NEN EN 12815:2001 & NEN EN 12815-A1:2004
Hearth Req:	Constructional

Manufacturer Address:	ESSE Engineering Ltd, Long Ing, Barnoldswick, Lancashire, BB18 6BJ
Manufacturer Email:	enquiries@esse.com.
Telephone Number:	1283 813 235

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;

Nominal Output - Wood Logs	4.6KW
Net Efficiency - Wood Logs	81.0%
Gross Efficiency - Wood Logs	73.7%

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;

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;

External Air Supply Compatible	*N/A
Tool Required for Refue/De-Ash	Yes
Flue Draught test Point	N/A

*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 - Wood Logs	29 mg/m3
OGC Emissions - Wood Logs	70 mg/m3
CO Emissions - Wood Logs	982 mg/m3
NOx Emissions - Wood Logs	116 mg/m3
Seasonal Efficiency - Wood Logs	71.0%
Energy Label Ratings	A+

Appliance Dimensions

Height	422mm
Width	690mm
Depth	470mm

Technical Downloads

Instruction Manual Reference	Wood Fired Cook Stove Instruction Manual--Version 1
DoP Cerificate Referece	R1 09/23

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