"Christian McArdle" wrote in message
.. .
Are the installation and maintenance of oil boilers more then gas?
How about the cost of installing a tank and any maintenance required?

Yes, capital costs are higher. Mainly due to the tank, although the
boilers
can be a bit more pricey, too.

.....and large too. Although they do have outside models, and the combi
versions tend to have a small thermal store inside (sometime quite larges
stores too) as the burners are slow in responding. Hence the flowrate of
oil combi boilers can be quite pleasing. So, one of these installed outside
can eliminate tanks and cylinders, and have "no" major heating and water
appliances in the house.