Warm Air Boilers

Warm Air Central Heating

Warm Air Boilers


Johnson & Starley's all new WarmCair range of Super-Efficient condensing Warm Air Central Heating appliances (10kW to 46kW)

Building on our position as market leaders in the Warm Air Heating Industry and using the latest proven cutting edge technology, the WarmCair range of Condensing Warm Air Heaters have been designed to offer exceptional reliability, unrivalled efficiency and warmth combined with low carbon emissions and low operating noise levels. Patent approvals applications are in place for Europe and the USA and Canada.

Available with or without Domestic Hot Water (DHW) and in either upflow or downflow models, the WarmCair range offers a host of upflow or downflow models, the WarmCair range offers a host of energy saving features Suitable for upgrades and new build the WarmCair range can replace any existing warm air heater, and with installations generally being possible in less than a day disruption is kept to a minimum

Having a Thermal efficiency of up to 98%, indications from our field trials have shown savings in gas consumption of up to 28%. The savings are dependant upon usage, lifestyle, property size, insulation values and fuel costs.

This is without doubt our most innovative Warm Air Heater development and with the range going up to 46kW units for the first time, they will be capable of meeting commercial heating requirements in schools, nursing homes, small hotels, retail outlets, sports halls and community centers.


The Economaire range of warm air heaters is designed to meet the high standards of today's home owners. They have as standard features an Electronic Control system an infinitely variable supply air fan and a self diagnostics panel.

The heart of the design is an electronic panel utilising digital technology and microprocessor control. Critical management of flue gases and heat exchanger temperatures result in the warmth delivered to each room being accurate to ± 0.1°C, ensuring exceptional comfort. As the system directly heats the air, warm up time is virtually immediate, and system efficiency is optimised.


The highly versatile range of Hi-Spec warm air heaters has been designed with the user and installer in mind. Ideally suited to replace existing heaters or new applications. Models available from 7.3Kw to 26.4Kw output.

Options include:

  • Johnson & Starley Cleanflow electronic air cleaner
  • Electronic controls for improved comfort conditions and system efficiency
  • Integral water heater
  • Range of fixing panels and base ducts

Models available for compartment, slot fix or free standing


The New Range of Condensing Warm Air Central Heating use the latest technologies available resulting in reduced running costs, noise and emissions.

The sophisticated controls enable the precise amount of heat output to match the demand and being a condensing appliance it uses less energy to produce the required heat output as it uses more of the energy input when compared to a similar sized non-condensing heater

  • Warmcair downflow. 5 models available 10kW - 46kW output range with Modulating control in most cases will fit existing plenum

  • Warmcair upflow. 4 models available 16kW - 46kW output range with Modulating control in most cases will fit existing plenum

  • WarmCair downflow models with domestic hot water. 3 Models available 10KW - 20kW output range with Modulating control