- Messages
- 6,157
Look at a Viessman 222 10 year manufacturers warranty and all that water stored in your loft can be removed no structural work to do no worries about leakage or freezing up, when connected to their weather compensation sensor and app its very cost effective and efficient worth a thought ? I've never been a fan of horizontal cylinders the hot water storage is not the same as a vertical one a drestrat pump helps but not for me I'm afraid. Kop