Firebird Envirolite Heatpac Condensing Oil Boiler CR35
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Firebird Envirolite Heatpac Condensing Oil Boiler CR35
(Approx. 3-5 working days)


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The Firebird Silverpac CR35 is a floor standing condensing oil boiler designed for heat only applications in traditional heating systems. It delivers a heat output range of 26kW to 35kW, making it suitable for larger properties or systems with higher heating demands. This model is intended for external installation and features a weatherproof PVC coated casing for durability in outdoor conditions.
The oil boiler uses condensing technology to achieve high efficiency, with a seasonal efficiency rating of approximately 89–90%. It includes a low NOx Elco burner and a built-in frost protection thermostat for reliable operation in cold weather. The design incorporates removable panels for easy servicing and four tapping points for flexible pipe connections.
Compliant with ErP and Building Regulations Part L, the Silverpac CR35 supports multi-directional flue options and includes an integrated condensate trap. Its robust construction and adaptable fittings make it suitable for retrofit installations where space and access may be limited.
- Heat output range: 26–35kW for larger heating systems
- Weatherproof PVC coated casing for outdoor durability
- Built-in frost protection for reliable cold weather operation
- Four tapping points for flexible pipe connections
- Low NOx Elco burner for reduced emissions
| Brand | Firebird |
|---|---|
| Width | 720 mm |
| Applicable Standards | EN 303-5, EN 303-1, EN 303-2, Ecodesign |
| Depth | 625 mm |
| Flue Included | No |
| Fuel Type | Gas, Hydrotreated Vegetable Oil (HVO) |
| Heat Output Range | 26–35kW |
| Height | 945 mm |
| Central Heating Output | 35 kW |
| Min Heat Output | 26 |
| Model Name / No | EGE035SGR |
| Weight | 158 kg |
| Colour | Green |
| Mount Type | Floor Mounted |
| Residential Warranty | 2 years standard, up to 10 years when installed by accredited installer |
| Sound Power Level (dB A): | 60 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Firebird Silverpac CR35 is a floor standing condensing oil boiler designed for heat only applications in traditional heating systems. It delivers a heat output range of 26kW to 35kW, making it suitable for larger properties or systems with higher heating demands. This model is intended for external installation and features a weatherproof PVC coated casing for durability in outdoor conditions.
The oil boiler uses condensing technology to achieve high efficiency, with a seasonal efficiency rating of approximately 89–90%. It includes a low NOx Elco burner and a built-in frost protection thermostat for reliable operation in cold weather. The design incorporates removable panels for easy servicing and four tapping points for flexible pipe connections.
Compliant with ErP and Building Regulations Part L, the Silverpac CR35 supports multi-directional flue options and includes an integrated condensate trap. Its robust construction and adaptable fittings make it suitable for retrofit installations where space and access may be limited.
- Heat output range: 26–35kW for larger heating systems
- Weatherproof PVC coated casing for outdoor durability
- Built-in frost protection for reliable cold weather operation
- Four tapping points for flexible pipe connections
- Low NOx Elco burner for reduced emissions
| Brand | Firebird |
|---|---|
| Width | 720 mm |
| Applicable Standards | EN 303-5, EN 303-1, EN 303-2, Ecodesign |
| Depth | 625 mm |
| Flue Included | No |
| Fuel Type | Gas, Hydrotreated Vegetable Oil (HVO) |
| Heat Output Range | 26–35kW |
| Height | 945 mm |
| Central Heating Output | 35 kW |
| Min Heat Output | 26 |
| Model Name / No | EGE035SGR |
| Weight | 158 kg |
| Colour | Green |
| Mount Type | Floor Mounted |
| Residential Warranty | 2 years standard, up to 10 years when installed by accredited installer |
| Sound Power Level (dB A): | 60 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.


