It's important to figure out what type of headache is causing your pain. If you know your headache type, you can treat it correctly. In one 2004 study, 80% of people who had a recent history of self-described or doctor-diagnosed sinus headache, but no signs of sinus infection, actually met the criteria for migraine.
Different types of boilers and boiler brands. The boiler market in the UK is dominated by one particular type of boiler: the condensing boiler. However, there are different types of condensing boiler, including combi-boilers, heat-only and system boilers. Popular brands producing combi-boilers include Baxi and Glow Worm (both Baxi heating boilers and Glow Worm boilers are British made).
Quick Answer. Gas boilers are tanks that sit on top of a burner that is heated by burning natural gas to spread heat into the tank. The tank heats water for hot water and sends it through the pipes to faucets or, depending on the boiler's function, heats water to create steam that is pumped distributed through the house via pipes or radiators. Keep Learning.