I live in a 2 ½ bedroom house now with one bathroom, about to become a 3 ½ bedroom house with 2 bathrooms after a loft conversion (The ½ bedroom is only tiny and isn’t often used as a bedroom). Both bathrooms will have a bath with a shower in it.
I currently have a traditional system: boiler (now packed up), hot water cylinder (113 litres) and a cold water tank in loft. When the loft conversion is done I am going to move to a pressurised system, ie no cold water tank in the loft. I plan to have the boiler downstairs and the pressurised cylinder in the loft. I have the following questions:
1. Which boiler to get? Do I need a boiler specifically for pressurised systems? Should I get a “system boiler” (I believe this means it’s designed for unvented/pressurised systems), or a standard boiler with a conversion kit? (As I understand it the boiler will need an expansion vessel and this comes in the conversion kit or is included with a system boiler.)
2. Which cylinder? I assume I should get a Megaflow (145 litres, with built in expansion vessel), do people agree?
3. As the cylinder is so far away from the boiler I’ve been told that the hot water will take ages to get through to the kitchen from the loft, is this right?
So should I have a “secondary return” (also called a fully pumped system?) to resolve this?
Thanks
I currently have a traditional system: boiler (now packed up), hot water cylinder (113 litres) and a cold water tank in loft. When the loft conversion is done I am going to move to a pressurised system, ie no cold water tank in the loft. I plan to have the boiler downstairs and the pressurised cylinder in the loft. I have the following questions:
1. Which boiler to get? Do I need a boiler specifically for pressurised systems? Should I get a “system boiler” (I believe this means it’s designed for unvented/pressurised systems), or a standard boiler with a conversion kit? (As I understand it the boiler will need an expansion vessel and this comes in the conversion kit or is included with a system boiler.)
2. Which cylinder? I assume I should get a Megaflow (145 litres, with built in expansion vessel), do people agree?
3. As the cylinder is so far away from the boiler I’ve been told that the hot water will take ages to get through to the kitchen from the loft, is this right?
So should I have a “secondary return” (also called a fully pumped system?) to resolve this?
Thanks