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      4. Joule Vertical Indirect Unvented Cylinders

      Joule Vertical Indirect Unvented Cylinders

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      1 - 25 Of 25 Products
      Joule Cyclone Standard In-Direct Unvented Cylinder, 150 Litre, Stainless Steel
      SAVE 22%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 150 Litre, Stainless Steel
      JI150
      In Stock
      3 Days
      £576.95 RRP £741.02
      Joule Cyclone Standard In-Direct Unvented Cylinder, 125 Litre, Stainless Steel
      SAVE 21%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 125 Litre, Stainless Steel
      JI125
      In Stock
      3 Days
      £585.95 RRP £737.58
      Joule Cyclone Standard In-Direct Unvented Cylinder, 170 Litre, Stainless Steel
      SAVE 22%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 170 Litre, Stainless Steel
      JI170
      In Stock
      3 Days
      £600.95 RRP £771.89
      Joule Cyclone Standard In-Direct Unvented Cylinder, 200 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 200 Litre, Stainless Steel
      JI200
      In Stock
      3 Days
      £637.95 RRP £823.39
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 200 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 200 Litre, Stainless Steel
      JI200S
      In Stock
      3 Days
      £637.95 RRP £823.39
      Joule Cyclone Standard In-Direct Unvented Cylinder, 250 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 250 Litre, Stainless Steel
      JI250
      In Stock
      3 Days
      £700.95 RRP £909.15
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 250 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 250 Litre, Stainless Steel
      JI250S
      In Stock
      3 Days
      £700.95 RRP £909.15
      Joule Slimline In-Direct Unvented Cylinder, 100 Litre, Stainless Steel
      SAVE 23%
      Joule Slimline In-Direct Unvented Cylinder, 100 Litre, Stainless Steel
      JIS100
      In Stock
      3 Days
      £761.95 RRP £990.42
      Joule Slimline In-Direct Unvented Cylinder, 125 Litre, Stainless Steel
      SAVE 23%
      Joule Slimline In-Direct Unvented Cylinder, 125 Litre, Stainless Steel
      JIS125
      In Stock
      3 Days
      £769.95 RRP £1,001.99
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 300 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Short Unvented Cylinder, 300 Litre, Stainless Steel
      JI300S
      In Stock
      3 Days
      £777.95 RRP £1,012.07
      Joule Cyclone Standard In-Direct Unvented Cylinder, 300 Litre, Stainless Steel
      SAVE 23%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 300 Litre, Stainless Steel
      JI300
      In Stock
      3 Days
      £777.95 RRP £1,012.07
      Joule Slimline In-Direct Unvented Cylinder, 150 Litre, Stainless Steel
      SAVE 23%
      Joule Slimline In-Direct Unvented Cylinder, 150 Litre, Stainless Steel
      JIS150
      In Stock
      3 Days
      £789.95 RRP £1,029.25
      Joule Slimline In-Direct Unvented Cylinder, 170 Litre, Stainless Steel
      SAVE 23%
      Joule Slimline In-Direct Unvented Cylinder, 170 Litre, Stainless Steel
      JIS170
      In Stock
      3 Days
      £802.95 RRP £1,046.41
      Joule Slimline In-Direct Unvented Cylinder, 200 Litre, Stainless Steel
      SAVE 23%
      Joule Slimline In-Direct Unvented Cylinder, 200 Litre, Stainless Steel
      JIS200
      In Stock
      3 Days
      £827.95 RRP £1,080.73
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 170 Litre - Stainless Steel
      SAVE 24%
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 170 Litre - Stainless Steel
      JWI170
      In Stock
      3 Days
      £882.95 RRP £1,154.68
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 200 Litre - Stainless Steel
      SAVE 24%
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 200 Litre - Stainless Steel
      JWI200
      In Stock
      3 Days
      £909.95 RRP £1,192.42
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 150 Litre - Stainless Steel
      SAVE 24%
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 150 Litre - Stainless Steel
      JI150EVO
      In Stock
      3 Days
      £957.95 RRP £1,256.39
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 250 Litre - Stainless Steel
      SAVE 24%
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 250 Litre - Stainless Steel
      JWI250
      In Stock
      3 Days
      £998.95 RRP £1,312.54
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 170 Litre - Stainless Steel
      SAVE 24%
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 170 Litre - Stainless Steel
      JI170EVO
      In Stock
      3 Days
      £999.95 RRP £1,313.95
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 200 Litre - Stainless Steel
      SAVE 24%
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 200 Litre - Stainless Steel
      JI200EVO
      In Stock
      3 Days
      £1,032.95 RRP £1,358.90
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 300 Litre - Stainless Steel
      SAVE 24%
      Joule Cyclone Solar Twin In-Direct Unvented Cylinder 300 Litre - Stainless Steel
      JWI300
      In Stock
      3 Days
      £1,039.95 RRP £1,367.45
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 250 Litre - Stainless Steel
      SAVE 24%
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 250 Litre - Stainless Steel
      JI250EVO
      In Stock
      3 Days
      £1,175.95 RRP £1,552.83
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 300 Litre - Stainless Steel
      SAVE 24%
      Joule Evolution In-Direct Air Bubble Unvented Cylinder 300 Litre - Stainless Steel
      JI300EVO
      In Stock
      3 Days
      £1,263.95 RRP £1,671.88
      Joule Cyclone Standard In-Direct Unvented Cylinder, 400 Litre, Stainless Steel
      SAVE 24%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 400 Litre, Stainless Steel
      JI400
      In Stock
      3 Days
      £1,298.95 RRP £1,720.35
      Joule Cyclone Standard In-Direct Unvented Cylinder, 500 Litre, Stainless Steel
      SAVE 25%
      Joule Cyclone Standard In-Direct Unvented Cylinder, 500 Litre, Stainless Steel
      JI500
      In Stock
      3 Days
      £1,506.95 RRP £2,001.07
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      BTU Calculator

      Below is a tool that can enable you to calculate the BTU requirements needed for your room.

      There are many factors that affect this calculation including the outdoor temperature, thickness of exterior walls and the quality of insulation installed. You should also ensure you have a boiler that is capable of generating necessary output for all of the radiators in your property.

      Our BTU calculator should be used as a guide only, the actual BTU requirements may be slightly different to what our calculator will produce. If you need further help, please contact us.

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      BTU Calculator

      This calculator should be used as a guide only

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