A. The Vaillant solar domestic hot water system is able to work even on cloudy days because it uses diffused radiation as well as direct sunlight.
Q. How much can I save by reducing my heating and water temperatures?
A. Reducing your room temperature by 1ºC could cut your heating bills by 10%. Setting your water cylinder temperature to less than 60ºC and fitting approved thermostatic mixing valves will also help save money.
Q. Are there now more sophisticated ways of programming heating than a thermostat and timer?
A. Yes, more intelligent heating controls are now available that can increase your comfort and save energy.
For example, wireless heat controls in every room can be reset remotely from your laptop – very useful if you have an irregular schedule.
Weather compensation controls do just what they say by monitoring the outside temperature and the room temperature using Vaillant’s VRC 400 or VRC 430 controls, and then adjusting the boiler to achieve the required heat output. On a sunny day for example, the heat output from the boiler will be reduced, as a result radiators may feel cool to touch.
Q. I’m extending my home – will I need a new boiler for the new section of the house?
A. The capacity of your existing boiler will have been matched quite closely to the size of your home – the floor space and the number of bathrooms – in order to achieve maximum efficiency. If you are just adding one radiator for a new conservatory you will not need to replace your boiler, but if more radiators and hot water are required you should contact a heating adviser to find out if a new boiler is needed.
Q. What is the ultimate low-carbon energy saving system that’s available today?
A. Ground source heat pumps run almost entirely on non-fossil fuel. They extract the earth’s natural heat using electricity that can be supplied by a renewable energy source such as solar power. The pumps have much lower running costs than oil, coal or electric heating systems and will cut your CO2 emissions by between 4.5 and 5.5 tons of CO2 a year.
Meanwhile, a solar water heating system can reduce CO2 emissions by 350 to 400 kilograms a year, depending on which fuel type it replaces.
Q. Are there restrictions as to where boilers can be sited?
A. Generally boilers can be sited wherever you like. All they require is flueing to the outside and to meet all building regulations. Apart from that from country to country there can exist national restrictions which you should ask for at your local authority or installer.
Q. How are high-efficiency condensing boilers more efficient than standard efficiency boilers?
A. High-efficiency condensing boilers are able to capture and use much of the heat that old non-condensing boilers waste and release into the atmosphere.
Condensing boilers convert around 90% of fuel into useful heating, whereas old conventional boilers only convert around 60% and waste the rest.
Q. Is my new boiler environmentally friendly?
A. The boilers in Vaillant’s current range are amongst the most environmentally friendly you will find. Due to low NOX (nitrogen oxide) emission and high efficiency they pump out less C02 than older models. Plus, none of the materials used to make them contributes to the Ozone Depletion Potential and the Global Warming Potential (see below).
The Ozone Depletion Potential (ODP) is a number that refers to the amount of ozone depletion caused by a particular substance. All Vaillant boilers have an ODP rating of 0.
The Global Warming Potential (GWP) is a measure of how much a given mass of greenhouse gas is estimated to contribute to global warming. Vaillant’s boilers have an official rating of 0 in this category.
Q. Where can I buy a Vaillant boiler?
A. We have a number of importers and service centers strategically located across the world. So you can buy a Vaillant boiler from our importer or your local builders merchants.
If you cannot find a desired information, please do not hesitate to contact us via our contact form.
