E
ecowarm
My own heating was an open fire with back boiler which is now outside the front gate waiting for the metal fairies to make it disapear.
Fit a Stratford Ecoboiler HE7 and use existing cylinder for now, was on gravity...... now fully pumped.
Fit a heat leak radiator >10% the output of the boiler on gravity, going to fit a normally open 2 port to this at a later date. So it will only come on if power off.
Fit a 4 port mixer valve and controller, room stat, flow to rads sensor, boiler return sensor and outside sensor.
Up size cold feed to 22mm
I now can regulate the regulate the minimum and maximum return to boiler temp (as long as power is on) its now set at min65c max85c, boiler stat set to 5. MI say minimum return temp 45c which on gravity can take a long time. This setup is up to temp in a few mins.
Once the controller senses the return is up to minimum it starts to send some percentage to the rads.
Keeping an eye on the outside temp and indoor temp and return it varies the flow and temp to suit.
I have tested it with the power off and the east start air inlet left open (this bypasses the thermo air flap) with a full load of wood, secondary air open. This is the worst situation you coud get apart from a bit of clincker getting jammed in the air inlet flap and stopping the termostat shutting down completely. The heat leak rad takes all the heat and boiler does not boil.
House is now nice and toasty. The only problem is the controller puts out excess heat to rads if max temp reached, its now 24c in the hall according to room stat.
Fit a Stratford Ecoboiler HE7 and use existing cylinder for now, was on gravity...... now fully pumped.
Fit a heat leak radiator >10% the output of the boiler on gravity, going to fit a normally open 2 port to this at a later date. So it will only come on if power off.
Fit a 4 port mixer valve and controller, room stat, flow to rads sensor, boiler return sensor and outside sensor.
Up size cold feed to 22mm
I now can regulate the regulate the minimum and maximum return to boiler temp (as long as power is on) its now set at min65c max85c, boiler stat set to 5. MI say minimum return temp 45c which on gravity can take a long time. This setup is up to temp in a few mins.
Once the controller senses the return is up to minimum it starts to send some percentage to the rads.
Keeping an eye on the outside temp and indoor temp and return it varies the flow and temp to suit.
I have tested it with the power off and the east start air inlet left open (this bypasses the thermo air flap) with a full load of wood, secondary air open. This is the worst situation you coud get apart from a bit of clincker getting jammed in the air inlet flap and stopping the termostat shutting down completely. The heat leak rad takes all the heat and boiler does not boil.
House is now nice and toasty. The only problem is the controller puts out excess heat to rads if max temp reached, its now 24c in the hall according to room stat.
