Atmos Inter range (gas)
The Atmos Inter range comprises the InterCombi HE32 and the InterOpen HE22 for open vent systems. Introduced in the UK in 2004 most are still in good working order due to the robust heat exchanger. Only four working parts all of which can be replaced with spares in stock.
Atmos Multi (gas)
The Atmos Multi range comprises the 24/80, 24/80 Plus, 32/80 and 32/80 Plus. A compact combination gas boiler with an 80 litre hot water tank. Mark 1 introduced in 2000 as award winning condensing boiler, superseded by the Mark 2 version in 2007. Most parts are identical but a small number are different.
Atmos Coopra Compact (gas)
As the name suggests, the Compact is a remarkably compact gas condensing boiler in Combi and heat only versions. An exceptionally efficient boiler with the highest efficiency, although only a small number were sold in the UK by Atmos, most spares are still in stock.
Atmos Combinair (gas/electric)
This was a boiler ahead of the game, combining the high efficiency heat exchanger of the Atmos Multi with a 2.5kW air source heat pump, and a plate heat exchanger for hot water. Manufactured by Itho-Daalderop of Netherlands, the Combinair was replaced by a more advanced version, but some spares for the original Combinair are still in stock.