|   Hot 
                                  water systems 
                                Vented 
                                  cylinder - The standard for e.g. conventional 
                                  system. 
                                Unvented 
                                  cylinder – This is a mains fed 
                                  cylinder, therefore there is no tank in the 
                                  loft, this combined with a sealed boiler is 
                                  the best and most efficient boiler available 
                                  and will outlast 90% of usual cylinders. 
                                Instant 
                                  Gas Heaters  
                                Unvented 
                                  direct fired – This is a cylinder 
                                  having a gas burner inside. This is ideal for 
                                  awkward positions where you may need hot water. 
                                  Mains feed and gas are all that is required. 
                                Please 
                                  do not hesitate to phone 01304 611988 if you 
                                  require further advice.  
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