This will be determined by a flue specialist company, who can calculate the resistance of the flue route and determine the correct size of flue to give enough buoyancy for the flue gases to evacuate safely.
Articles in this section
- Can you help with hot water sizing of Dorchester water heaters?
- I need to replace a Dorchester DR35L water heater. Is this model still available? If not, what is the modern equivalent model and are there any major alterations necessary to swap these units?
- What is the maximum flue length of a Dorchester DR-LA gas fired water heater?
- What size expansion vessel do I need for a Powerstock Calorifier PS300?