new house, back boiler & pressurized system

teesh

we are building a new house, just wondering if you can put in a back boiler and also a pressurized system( good pressure on showers, etc)
have been told these wont work together but not sure if he's right. also, would it make a difference if we dont put a back boiler on an open fire, just have a stove and that to heat our radiators and hot water.
thanks

esox28

there are two seperate but interconnected system going into your new house.

the central heating system which will include the soilid fuel stove and oil or gas you cannot pressurize this system as the solid fuel must be connected to a feed and expansion tank (small tank in attic)

on the other side if it is your domestic hot and cold stored water which can be pressurized using a booster pump and high pressure cylinder even with a solid fuel stove providing the heat via a ' gravity coil ' (make sure you ask for a gravity coil when buying the cylinder).

dont forget that with this system you will need to get a safety check every 3-4 years ie expansion vessel pressure check, system pressure not over 3bar, T and P valve check, over pressure valve check and such, this is why there is a reluctance to install these pressurized dhw systems over a vertually maintanance free open vented cylinder and shower pump

mark_18tp

this system is ok. with the use of the thermal store cylinder, copper industries in toome make them called a maxi pod

they work the opposite of a hot water cylinder. they are excellant peice of kit and they dont need service yearly like the unvented cylinder
they will give you good showers and tap pressure and flow rate as long as your incoming mains pressure is good.

<Snip>
No pimping

mia_killeshil

Hi Mark

we have a maxipod in our house but it has me baffled as to how it works.
We have a Tripp TR25 stove in which heats 16-18 radiators the stove can get the maxipod up to 80 degrees plus - however when we turn on the radiators vertiually no heat gets to them - we have a pump for the radiators and a pump at the oil burner.

once the oil burner is turn on the radiators are hot in less than a minute - do you think we should have an additional pump to help heat the radiators?
Domestic water is alway very hot - no problem with that.

thanks