HEATING & RENEWABLES 43
already discussed, this means house- builders could be looking at build cost increases of between £5,000 - £8,000 per property as opposed to mains gas.
PRICE IS RIGHT WITH LPG In comparison, LPG is the closest alterna-
tive to mains gas, and offers the lowest CO2 emissions of any rural fossil fuel. Fewer modifications are required to pass Part L1A than oil or electric heating, and a developer can save significant build costs by taking a ‘fabric first’ approach and looking to reduce
the CO2 emitted by the house. Indeed, low cost energy saving ‘bolt ons’ such as waste water heat recovery or hi- therm lintels, which typically cost less than £500 per plot, are a far more cost-effective alternative to the costs of Solar PV, and produce the required uplift in SAP to meet Part L1A.
LPG boilers have the added benefit of being exactly the same size and flue clear- ance of standard mains gas boilers, and therefore, standard housing design layouts can be maintained, with the use of combi- nation boilers on smaller properties. Major boiler manufacturers also produce LPG-compatible versions of their standard boilers, meaning a housing developer is able to utilise any existing group purchase deals which are available.
COMPLYING WITH PART L1A OF THE BUILDING REGULATIONS (‘CONSERVATION OF FUEL AND POWER IN NEW DWELLINGS’) IS ONE OF THE MORE CHALLENGING ASPECTS OF MODERN HOUSEBUILDING
Typical installation costs on a 30-home development are £500 per plot, which covers the LPG tank, installation, connec- tions, pipework and meters all being fitted onsite. Housebuilders should also allow a budget figure of around £800-£1,000 per property for modification and connection costs when using LPG as opposed to
Aquair, a heater for almost every application
Installers or homeowners looking to replace old warm air heating systems with the latest highly energy efficient technology should consider the advantages of the Johnson & Starley’s Aquair Heat interface unit. An Aquair can replace any warm air heater in a home, fully utilise the existing warm air ducting and be integrated in to almost any centralised heating source. It can be run in conjunction with an existing
wet system and also has the option of supplying unheated air for cooling purposes during the warmer months.
01604 762881
www.johnsonandstarley.co.uk
mains gas, which is a greatly reduced figure in comparison to either oil heating or ASHP.
As the closest alternative to mains gas, it is clear that LPG offers larger cost savings than other non-mains gas fuel options.
Ian Digby is specification manager at Calor Electric radiators to new heights
In addition to updating and expanding its Vanguard range of aluminium electric radiators, Electrorad has launched a new state-of-the-art Vanguard WiFi range that is one of the first to have voice control compat- ibility with Amazon Alexa. Vanguard and
Vanguard WiFi offer a wide choice of outputs in 750w, 1200w, 1500w and 2000, and being fully Lot 20 compliant, they feature a number of energy saving controls. These include Virtual Open Window Sensors - to ensure that radiators stop heating when they sense a draft and restart when the window has been closed - and Adaptive Start Control that helps radiators learn when to switch on in order to achieve optimum household comfort.
www.electrorad.co.uk
WWW.HBDONLINE.CO.UK
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