Unblocked the bathroom sink instantly sounded like it was going to explode so knew it was doing it's job! Baxi have been manufacturing boilers in britain since so there isn’t much they don’t know when it comes to boilers. Feed units have larger receivers that act like reservoirs to hold the water needed by the new smaller boiler pumps attached to the feed units are typically controlled by a dedicated control on the boiler, such as the m&m or m&m . With no water tank to heat up, combi boilers can provide an unlimited supply of hot water on demand no waiting time! Responsibility for drains and sewers is shared between property owners, southern water, highways england, and medway council.