I saw this product which might be interesting for this conversation. Interested in what others think.
Heat hero
Description
Heat Hero Direct was designed to operate in single or dual solid fuel heating system. It is open vented, safe, fully efficient, easily installed and allows the
water circulate directly from the solid fuel boiler to the radiators and DHW without going through a heat exchanger. This allows the solid fuel boiler operate fully efficiently with good heat transfer throughout the home.
BENEFITS OF HEAT HERO DIRECT
Heat Hero Direct is a safe open vented heating system that has gravity and a built in 44 KW cooling loop that will cool the solid fuel boiler in the event of power failure.
The heat from the solid fuel boiler is directly circulated to the radiators and DHW without going through a heat exchanger which allows the solid fuel boiler operate fully efficiently.
There is no need to dig up floors to install gravity pipes.
There is no need to change a single coil cylinder to a dual coil cylinder.
Heat Hero Direct is very easily installed and has no electrical connections.
The pipe thermostat is installed beside the solid fuel boiler for accurate temperature readings.
Heat Hero Direct is compatible with pressurised and open vented single coil cylinders.
My question is, has anyone experimented with making a back boiler and using such device to provide
hot water and hot radiators aswell as the rocket mass heater.