FAQ’S

What are the main reasons why I should install a Grandee Condensing Boiler?

1. Firstly, you will save money in running costs. Oil prices over a period of time are very competitive though volatile. Oil boilers
are very efficient, considerably more so than gas boilers, but condensing boilers are at least 10% more efficient than most
standard oil boilers.

2. In 2007 all new boilers have to comply with Part L of the Building Regulations which effectively means that only
condensing boilers will be appropriate except in exceptional circumstances.

3. Government proposed house seller’s pack, council taxes and energy efficiency regulations are continuing their inexorable
drive towards energy conservation and efficient usage. Grandee condensing boilers may place you in an advantaged position.

4. Environmental groups argue that the burning of fossil fuels is damaging to the environment. Grandee condensing boilers
make a significant contribution to lessen such emissions by reducing the amount of Carbon Dioxide (CO2) produced.

How efficient are Grandee condensing boilers and what is Sedbuk?

Sedbuk stands for “Seasonal Efficiency Of Domestic Boilers in the UK” and is an energy efficiency scheme devised by the
government. The Sedbuk rating is calculated from laboratory tests combined with the type of fuel of an appliance, the
climate, the hot water system, whether ignition if automatic or permanent and other such factors necessary to produce a
meaningful indication of normal efficiency in typical usage.

Sedbuk Ratings

Grandee Combi - Sedbuk A ?

The detachable ‘instantaneous hot water system’ is a very clever patent held by Heating World. If you purchase a standard
Heating World condensing boiler which is rated Sedbuk ‘A’ and then bolt on the kit as an optional extra, then should the
appliance be classed as an ‘A’ rated appliance? We think so. This is only possible with the Heating World patented method.

Are Grandee condensing boilers the most efficient available?

Some brands have claimed slightly higher efficiencies on the Sedbuk database. However, we believe that Grandee boilers
are the most efficient consistent with reliable operation and lower propensity to sooting. In laboratory tests it is possible,
in relatively short duration testing, to squeeze out a nominal amount more heat. The trade off, in our opinion, greatly risks
the prospect of sooting and unreliability.

Our experience has demonstrated, ineluctably, that such overbaffling, especially where the design of the appliance is reliant
upon very narrow or small diameter tubular passageways, is far more likely to cause problems in service than our patented
Grandee method.

Our directors have been involved in domestic oil boilers since 1962 – longer than most competitors have been in business.

Sooting boilers - an added risk with condensing boilers?

When an oil boiler is maladjusted (mal-commissioned) overbaffled
or nozzle damaged, oil boilers can and do soot up. This problem is
exacerbated considerably in condensing boilers. The boiler becomes choked with thick, greasy, flocculent soot which has to be scraped out
and cleaned physically. It is difficult, if not impossible to prevent particles
of soot drifting or billowing round the home whilst it is being cleared and
it can adhere to walls, curtains, anything. Best avoided! Sometimes it is
necessary to remove or reduce baffling to ameliorate the problem but
then the appliance efficiency drops and the very rationale for installing a condensing unit is dissolved and you would not be getting the product
you paid for or the efficiency you expected.

A Standard oil burner has the potential to soot up if over baffled or
mal-commissioned. This risk magnifies with condensing oil burners
which usually create additional resistance to flue gases particularly where
a condensing heat-exchanger comprises narrow flue-ways, or small diameter tubes.

Even in a well commissioned appliance, smoke/soot is created in the start up phase which then clears once combustion is
established. It may adhere to heat exchanger surfaces and can develop geometrically. To prevent this initial surge of smoke/
soot entering into our condensing unit, our patented fluediverter system ensures that the initial burst of flue products is
exhausted immediately and not passed through our condensing device. After about 20 seconds the ‘clean’ flue gases are then routed through our patented condensing unit and the available heat ‘squeezed out’ exiting finally at around 55°C - Brilliant.

This is why we claim Grandee is the most reliable, easy to service condensing oil boiler
known to us, or your money back.