J
JakD
Guest
Currently have a internal oil boiler (warmflow 90/120) sealed system heating 10 rads on ground level and 6 upstairs. Hotpress on ground floor. Planning to install a Stanley Reginald with back boiler, which will have an external twin wall flue.
1- One plumber advised running 2 * 1" pipes to the hotpress (one up wall and over, while other underground) to hotpress and joining into a new twin worm cylinder tank.
2-Another plumber advised that this not necessary, and that he could just join into a 3/4" pipe on a radiator in a room just above where we installing the stove. This would be alot less piping, and would not have to replace cylinder. He would also run an pressure valve from the stove outside to allow for any build up of pressure if electricity was off. He foreign and advises this is the system used mainly in Germany/ Poland etc. Both would be replacing sealed system with an expansion tank in attic.
Unsure if both systems are an option?
Is there any advantage/disadvantage of one over the other?
Are there any additional risks/ long term problems in option 2 which is cheapest (less piping/same cylinder)
1- One plumber advised running 2 * 1" pipes to the hotpress (one up wall and over, while other underground) to hotpress and joining into a new twin worm cylinder tank.
2-Another plumber advised that this not necessary, and that he could just join into a 3/4" pipe on a radiator in a room just above where we installing the stove. This would be alot less piping, and would not have to replace cylinder. He would also run an pressure valve from the stove outside to allow for any build up of pressure if electricity was off. He foreign and advises this is the system used mainly in Germany/ Poland etc. Both would be replacing sealed system with an expansion tank in attic.
Unsure if both systems are an option?
Is there any advantage/disadvantage of one over the other?
Are there any additional risks/ long term problems in option 2 which is cheapest (less piping/same cylinder)