Firebird Envirogreen Combipac External Oil Boiler

Firebird Envirogreen Combipac External Boiler

The Firebird Envirogreen Combipac External Oil Boiler is an external condensing oil-fired combination boiler designed to provide central heating and domestic hot water from one complete appliance. Its weatherproof external casing makes it suitable for installations where indoor boiler space is limited.

The Envirogreen Combipac range is available in 20kW, 26kW and 35kW heating output models, providing a choice of capacity for different residential heating requirements. Firebird’s documentation gives the range an A ErP rating for heating and B rating for hot water.

External Oil Combi Boiler

The Combipac is designed specifically for outdoor installation. Its robust weatherproof PVC-coated casing protects the boiler from external conditions while allowing the heating appliance to be installed outside the main building.

A factory-fitted frost protection thermostat helps protect the boiler during cold conditions, while the fully insulated and acoustically designed casing contributes to quieter operation.

Because the boiler is installed externally, it can help free valuable indoor space and is particularly useful for properties where there is no suitable internal boiler location.

Central Heating and Instant Hot Water

The Firebird Envirogreen Combipac combines central heating and domestic hot water production in a single oil-fired appliance.

Depending on the selected model, the range provides:

• 20kW heating output – up to 16 litres/min hot water flow
• 26kW heating output – up to 16 litres/min hot water flow
• 35kW heating output – up to 20 litres/min hot water flow

Firebird’s published hot-water figures are based on a 40°C temperature differential. Where water demand exceeds the specified flow, Firebird recommends a flow restrictor to maintain an adequate hot-water temperature.

The system also provides rapid reheating following hot-water draw-off, making the Combipac suitable for homes requiring reliable domestic hot water without a separate hot-water storage cylinder.

Firebird Envirogreen Combipac Models

The listed external Combipac models measure approximately 945mm high × 720mm wide × 625mm deep. The 20kW and 26kW models weigh approximately 200kg, while the 35kW model weighs approximately 203kg according to the published specification.

Key Features

• External condensing oil-fired combi boiler
• Central heating and domestic hot water in one appliance
• 20kW, 26kW and 35kW heating models
• A-rated ErP heating performance
• B-rated ErP hot-water performance
• Weatherproof PVC-coated external casing
• Factory-fitted frost protection thermostat
• High-performance low-NOx Elco burner
• Excellent hot-water performance
• Rapid hot-water reheat after draw-off
• Fully insulated casing
• Acoustically designed for quiet operation
• Patented heat exchanger design
• High-efficiency Grundfos circulating pump
• Electronic water-flow detection
• No conventional flow switch required
• Low-pressure switch for system protection
• Removable side panels for easier servicing
• Multi-directional flue options
• Stainless-steel terminal guard
• Built-in check valve and positive shut-off filling loop
• Optional condensate pump
• Simple pipe layout for installation
• HVO-ready Envirogreen technology

Weatherproof External Design

The Combipac is enclosed within a high-quality weatherproof PVC-coated casing, allowing the boiler to be positioned outside without requiring a dedicated boiler room or external building.

The casing is fully insulated to reduce heat loss and acoustically designed to help minimise operating noise. Removable sides provide easier access for servicing and maintenance.

Pipework can be routed from the rear or underneath the boiler, providing installation flexibility for different property layouts.

Condensing Oil Boiler Technology

The Envirogreen Combipac incorporates Firebird’s patented heat exchanger technology and a high-performance low-NOx Elco burner.

The range is designed to maximise useful heat extraction from the fuel while maintaining reliable central heating and domestic hot-water performance. Firebird also identifies the Envirogreen range as HVO ready, supporting the manufacturer’s move toward lower-carbon liquid-fuel options.

Compact Alternative to an Internal Boiler

Installing the Firebird Envirogreen Combipac externally can free space inside the property. This makes the boiler suitable for homes where a conventional internal boiler location is unavailable or where the homeowner wants to retain valuable utility, kitchen or storage space.

Because the Combipac integrates heating and hot-water functions, it can also avoid the need for a separate domestic hot-water cylinder in a typical combi installation.

European Firebird Boiler Supply

Euro Fuel Supply supplies heating and energy equipment to customers across Europe, including homeowners, heating installers, contractors, developers, trade customers and wholesale buyers.

The Firebird Envirogreen Combipac External Oil Boiler is suitable for customers looking for a weatherproof external oil combi boiler that combines condensing heating technology, domestic hot-water production and integrated system controls in one appliance.

Contact Euro Fuel Supply for current availability, model options, trade pricing and European delivery.

Firebird Envirogreen Combipac External Oil Boiler FAQ

What is the Firebird Envirogreen Combipac?

The Firebird Envirogreen Combipac is an external condensing oil-fired combination boiler that provides both central heating and domestic hot water from one appliance.

What heating outputs are available?

The external Combipac range is available in 20kW, 26kW and 35kW maximum heating output models.

Is the Firebird Combipac A-rated?

Yes. The Envirogreen Combipac models have an A ErP heating rating and B ErP hot-water rating.

Does the Firebird Combipac provide hot water?

Yes. It is a combination boiler designed to provide domestic hot water as well as central heating. The published hot-water flow rates are up to 16 litres/min for the 20kW and 26kW models and up to 20 litres/min for the 35kW model at a 40°C temperature differential.

Does the Combipac need a separate hot-water cylinder?

No separate domestic hot-water cylinder is normally required for combi operation because hot water is produced directly by the combination boiler.

Is the Firebird Envirogreen Combipac designed for outdoor installation?

Yes. The Combipac is an external boiler supplied in a weatherproof PVC-coated casing with factory-fitted frost protection.

What are the dimensions?

The published external Combipac models are approximately 945mm high × 720mm wide × 625mm deep.

What are the product codes?

The published product codes are ECE020CPK for the 20kW model, ECE026CPK for the 26kW model and ECE035CPK for the 35kW model.

Does the boiler have frost protection?

Yes. The external Combipac has a factory-fitted frost protection thermostat, which is an important feature for an outdoor-installed boiler.

Is the Firebird Envirogreen Combipac a condensing boiler?

Yes. It forms part of Firebird’s Envirogreen condensing oil boiler range.

Is the Firebird Envirogreen Combipac HVO ready?

Firebird identifies its Envirogreen boiler range as HVO ready, including the Combipac range.

What fuel does the Firebird Combipac use?

Firebird’s Envirogreen technical documentation specifies 28-second Class C2 kerosene for the oil boiler range.

What is the difference between the Combipac and Slimline Combi?

The Combipac is the larger external combination boiler range, with 20–35kW maximum heating outputs and a 720mm-wide casing. The Slimline Combi is a narrower 520mm-wide range available from 12–26kW.

What is the difference between the Combipac and Systempac?

The Combipac is a combination boiler that provides domestic hot water directly. The Systempac is a system boiler that works with a separate hot-water storage cylinder.