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Heat Pump air conditioning being installed in domestic applications are subject to new 5% VAT rate. If you wish to purchase for a domestic application telephone our sales office
Tel: 01200 428888
to qualify for the 5% VAT rate. Web shop purchases subject to 17.5% VAT rate Which is included in the prices shown.

This is an archive of the old The Air Conditioning Shop Air Conditioning UK website. Please go to the..

[ New The Air Conditioning Shop Air Conditioning UK Web Site ]

Btu (British thermal unit ) to k.w. Converter Most air conditioning is calculated in k.w,,s, Some still use Btu,s please use the calculate to convert btu/hr to kw/kr.
Insert Btu figure     Answer in watts (Divide by 1,000 for kilowatts)
Main Types of Domestic Air Conditioning
Brief description
Link to one on this site
Split system type (Indoor unit + Outdoor unit ) Indoor unit can be of several different types, the wall mounted type is the most popular and least expensive, the Outdoor unit can be sited up to 25 mtrs from the indoor unit. Between the indoor unit and outdoor unit are two small bore pipes containing refrigerant and a cable.Disadvantage - Has to be installed !. Advantages Quiet, only a small hole to be made.   
Packaged type (Self contained "plug in" ) Most common packaged type is the " window unit", this is where both the indoor unit and the outdoor unit are contained in one "box". Disadvantages ! Large hole to be made, Noisier than split type. Advantages, Can be installed by anyone and up to 3.5 kw simply "plugs in" to a mains supply    
Mobile units (Vent Hose ) Portable unit on wheels that can be moved from room to room, The hot air is rejected via a flexible vent hose normally 1.5 mtrs long and 150mm dia.. Disadvantages ! Most types you have to empty a container when full, Have to have a opening for the hose, Hose length is restrictive, Noisier than split types. Advantages, packaged "plug in" good for spot cooling and small rooms,   
Mobile units (Split type ) Portable unit separated by a flexible hose (usually 4 to 5 mtrs in length) Similar to a split installed unit where the condenser ( outdoor ) is usually placed out of a window or on a patio and the indoor unit is floor mounted on wheels. Disadvantages ! Can be heavy and cumbersome. Noisier than fixed split types because compressor is inside indoor unit. Outdoor condenser is quite large and water from indoor unit is usually pumped to condenser which will "drip"   
Muliti types ( Several indoor units - One outdoor unit ) Several Indoor units (can be of different types,") can be connected to a single outdoor unit which can sited up to 50 mtrs from the indoor units. There is usually no cost saving by installing this type but is ideal when outdoor "space" is limited. Different manufacturers use various methods of connecting this type, too length to explain here. Disadvantages ! Unless it is a very sophisticated system if one unit is in cooling mode then they all have to be in cooling mode. (You cannot have 1 indoor unit heating and others cooling at the same time.