The Polytank 20 Gallon (91 Litre) Cold Water Storage Tank (24"x15"x24") comes with the following fits kit:
The Glow-worm Ultracom2 CXI Condensing Gas Combi Boiler range is ideal for small-medium size properties with a single bathroom and a low demand for central heating and hot water. The Ultracom2 CXI Gas Combi Boilers spaceous internal design, unique filling loop and one way wiring connections are all designed to make this a simple and easy boiler to install and service help consumers to save on the cost of installation and services. The Ultracom2 CXI Gas Combi Boiler also features a plain text high deffinition display making commissioning the boiler hassle free and with a highly efficient stainless steel heat exchanger the boiler will run so quietly you will hardly notice it.
At Boilers2go we recommend the Glow-worm Ultracom2 35 CXI Condensing Gas Combi Boiler for small-medium size properties where there is a low demand for hot water. We also recommend the Ultracom2 35 CXI Gas Combi Boiler for it energy effciency rating of 'A' on the SEDBUK scale, the highest offical energy efficiency rating in the UK. In addition the Ultracom2 35 CXI Gas Combi Boiler also comes with a years manufacturer's parts and labour warranty providing consumers with peace of mind.
The Glow-worm Flexicom SX Condensing Gas System Boiler range is ideal for a variety of property sizes with a high demand for hot water. The Flexicom SX Gas System Boiler is the first high efficiency System Boiler with a direct rear flue and cupboard fit dimensions providing flexibility when choosing where to install the boiler in the home. Also the Flexicom SX Gas System Boiler has been designed to be hassle free when replacing an old boiler or installing as new and is compatible with any existing hot water cylinder reducing installation times and costs. Plus with in-built advanced diagnostics servicing and maintenance is made quicker and easier providing further savings to the user.
At Boilers2go we recommend the Glow-worm Flexicom 18 SX Condensing Gas System Boiler for small-medium size properties with a high demand for hot water. Also as the Flexicom 18 SX Gas System Boiler is a condensing boiler, capable of reclaiming heat from the flue gas before they are lost to the atmosphere, users will save on their gas bills. Due to the condensing capabilities of the Flexicom 18 SX Gas System Boiler, it has a high energy efficiency rating of 'A' on the SEDBUK scale helping reduce gas consumption and lower carbon emissions. In addition the Flexicom 18 SX Gas System Boiler comes with a 2 year manufacturer's parts and labour warranty making this a worthwhile investment.
In a closed central heating system water cannot be compressed so any increase in the volume, created by an increase in temperature, needs to be accomodated. This is done with the use of an expansion vessel, when the water in the system is cold the pre-charge pressure of the system forces a diaphram in the expansion vessel against the tank towards the inlet. As the temperature increases the expanding water volume pushes against the diaphragm creating additional volume for the water to enter the expansion vessel. As the temperature decreases the pre-charge pressure forces the water from the expansion vessel back into the central heating system. This maintains a constant pressure within the central heating system and helps to reduce energy and water consumption.