Hot Water Cylinders

Installation and replacement in Dorchester & across Dorset

Professionally designed and installed hot water cylinders for reliable hot water, strong pressure and efficient operation.

ThermoLoco installs and replaces vented, unvented and heat-pump hot water cylinders for homes across Dorchester and Dorset. We assess your property, water supply and household demand to recommend the correct cylinder type and capacity.

Hot Water Cylinder Installation & Replacement

ThermoLoco installs and replaces hot water cylinders for homes throughout Dorchester and Dorset.

Whether you are replacing an ageing cylinder, upgrading your heating system or need more hot water for a growing household, we will assess your water supply, available space and expected demand before recommending the correct solution.

We install vented and unvented cylinders for boiler systems, as well as purpose-designed cylinders for air source heat pumps. Correct selection and installation help provide reliable hot water, suitable pressure and efficient operation.

Benefits of Upgrading Your Hot Water Cylinder

A correctly sized modern hot water cylinder can improve hot water availability, efficiency and everyday comfort throughout your home.

✓ More hot water available for busy or growing households

✓ Improved performance when multiple taps or showers are used

✓ Strong mains-pressure hot water with a suitable unvented cylinder and adequate incoming water supply

✓ Better insulation to reduce stored heat loss and unnecessary energy use

✓ Reliable hot water for homes with two or more bathrooms

✓ Cylinder capacity selected to suit your household’s actual requirements

✓ Compatible options for gas boilers and air source heat pumps

✓ Modern controls and immersion-heater backup options

ThermoLoco will assess your existing heating system, available space, water pressure and expected hot water demand before recommending the most appropriate cylinder type and capacity.

Choosing the Right Hot Water Cylinder

The right hot water cylinder depends on your existing heating system, water supply, available space and household demand. ThermoLoco can assess these factors and recommend a correctly sized solution for your home.

Vented Hot Water Cylinders

A vented cylinder is supplied from a cold-water storage tank, usually located in the loft. These systems are commonly found in older properties and can be suitable where the incoming mains water pressure or flow rate is limited.

ThermoLoco can replace an existing vented cylinder or advise whether converting to an unvented system would provide a worthwhile improvement.

Unvented Hot Water Cylinders

An unvented cylinder is connected directly to the incoming mains water supply, removing the need for a cold-water storage tank. With adequate mains pressure and flow, it can provide strong hot water performance at showers and taps throughout the property.

Before recommending an unvented cylinder, we assess the incoming water supply, available discharge route and the demands of the household to ensure the system is suitable and properly designed.

Heat-Pump Hot Water Cylinders

Heat-pump cylinders are specifically designed to work efficiently with the lower flow temperatures produced by an air source heat pump. They normally incorporate a larger heat-exchanger coil to transfer energy effectively and achieve an appropriate reheat time.

Correct cylinder selection is particularly important with a heat pump. ThermoLoco considers the heat-pump output, coil specification, stored-water volume and expected household usage when designing the system.

Cylinder Sizing and Water Pressure

A cylinder should be sized according to the number of occupants, bathrooms, showers and baths, as well as typical patterns of hot water use. Installing an undersized cylinder can result in insufficient hot water, while unnecessary oversizing may increase heat loss and take up valuable space.

For unvented systems, both static pressure and flow rate need to be considered. ThermoLoco assesses your property and water supply before recommending the most appropriate cylinder type and capacity for reliable, efficient hot water.

Hot water cylinder installed in Dorset house

What our customers say

Need a New or Replacement Hot Water Cylinder?

Whether you are replacing an ageing cylinder, considering an upgrade from vented to unvented hot water, or selecting the correct cylinder for a heat pump, ThermoLoco can help.

We will assess your existing heating system, incoming water supply, available space and household hot water requirements before recommending an appropriate solution.

Based near Dorchester, we install hot water cylinders for homes throughout Dorset and the surrounding area.

Contact ThermoLoco to discuss your requirements and arrange a quotation.

Hot water cylinder installed in Dorset house