Expert Advice & News

Cases of Legionnaires’ disease are on the rise, it's time for installers to be vigilant when it comes to potential sources of legionella bacteria. Falling prices of hot tubs and spa baths, together with warmer weather, has created a perfect opportunity for legionella and other water-associated problems. While those of us in the industry know that all man-made hot and cold water systems can provide an environment ripe for legionella bacteria to grow, the average consumer has no idea

The Joule range of un-vented cylinders are fantastic, I’m told they are the UK’s fastest-growing cylinder brand. Quality built and high-end performance, with a wide range of models available you can be sure there is a model to suit. With the introduction of the ErP Energy Related Product certificate scheme under an EU directive, Joule is leading the way by offering a complete range of A, B & C rated cylinders. The same quality is available across all rated cylinders.

Viessmann Vitodens 200-W 35kW Combination Boiler Natural Gas ErP with Vitotronic 200 Weather Compensation & Backlit Control, The Viessmann Vitodens 200-W is Viessmanns flagship wall mounted gas condensing boiler suitable for most installations. It’s a Gas-fired wall-mounted boiler, 1.6 up to 35kW. Standard efficiency: 98% (Hs) / 109% (Hi)Wide modulation range up to 1:20. Large water capacity, low cycling frequency. Durable and efficient Inox-Radial heat exchanger.

Can I use radiators with an air source heat pump?The simple answer to this question is YES. But the existing radiators will most probably need to be up sized for the new low flow temperatures your heat pump will be set to. The lower this set point, the more efficient your heat pump will be, and therefore the cheaper to run. The disadvantage of lower flow temperatures is, however, that the lower the water temperature, the more radiating surface area you need to emit the same amount of heat.

OpenTherm Awareness. The OpenTherm Association is planning to introduce the OpenTherm protocol more widely across the UK and has launched its first three-year communication program to raise the awareness of the digital protocol and its benefits to the heating industry. It's about time too. OpenTherm is a none propriety (manufacturer none dependent) system of digital communication currently utilised predominantly between commercial modulating heating appliances and room thermostats.

Review of the Worcester GB162 65kW Commercial Boiler. Worcester are probably Horshams number one boiler choice for domestic market installations, this also seems to be a growing trend for the commercial market too. There are many decent boiler manufacturers to choose from these days, but Worcester have given their customers confidence and satisfaction, even though it may come at a premium.