Envirogreen™ Slimline Heatpac

These Firebird boilers which are manufactured in Ireland are generally found in more traditional heating systems. Providing heat for radiators and separate hot water cylinders. They are installed as part of a system. Regular ‘heat only’ boilers can form part of a sealed system or open vent system.

The Firebird range of external boilers is similar in specification to their equivalent indoor models, with the addition of a built-in frost thermostat. There is no requirement to house the boiler in a building, so this option provides an ideal solution if internal space is at a premium.


  • High quality weather-proof PVC-coated casing.
  • Only 465mm wide.
  • Fully insulated to prevent heat loss.
  • Patented heat exchanger design.
  • Removable back panel for easy access.
  • 3-tapping points for ease of installation.
  • Fitted with frost protection stat.
  • Whisper-quiet operation.
  • Stainless steel terminal guard.
  • High-performance low NOx Elco burner.
  • Three models are available in outputs from 12kW to 35kW.


Product Specification

Envirogreen ModelProduct CodeHeating Output Max.Weight kgErP RatingDimensions (mm)
Envirogreen™ Slimline Heatpac 12-20kWEGE020SLM20kW147A920465760
Envirogreen™ Slimline Heatpac 20-26kWEGE026SLM26kW150A920465760
Envirogreen™ Slimline Heatpac 26-35kWEGE035SLM35kW153A920465760

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