We are just starting a large renovation and extension project on our 4 bed house: 2 bathrooms, 1 downstairs WC. Extending the kitchen/diner (to 5x6m), living (to 5x6m) and adding a utility (there are also 2 more reception rooms downstairs)
Water is currently a vented system, HW cylinder taking space in bedroom cupboard which we want to move out completely for space.
3 of us living there now, max family size would be 4.
Builders and plumbers saying we should either go for megaflow/unvented cylinder (architect says upstairs in new airing cupboard, I say in garage or utility), or just a big combi boiler (builder recommendation).
We'd like decent pressure showers (currently we have power shower on the unvented) and good hot water baths for our young family.
Builder suggests than unvented are pressure limited, so we wouldn't get anything like power shower flow at the showers.
We haven't considered just having a new vented system, as thought unvented gave better performance...
Regardless of choice, it's likely the boiler will be replaced anyway.
Finally we are thinking of underfloor heating in the two new rooms, possibly wet as I hear it's more efficient...
Thoughts and opinions would be great, thanks all.
PS I've read the older threads on similar topics but most seem to date 2-4 years ago, so wanted up-to-date advice.
Water is currently a vented system, HW cylinder taking space in bedroom cupboard which we want to move out completely for space.
3 of us living there now, max family size would be 4.
Builders and plumbers saying we should either go for megaflow/unvented cylinder (architect says upstairs in new airing cupboard, I say in garage or utility), or just a big combi boiler (builder recommendation).
We'd like decent pressure showers (currently we have power shower on the unvented) and good hot water baths for our young family.
Builder suggests than unvented are pressure limited, so we wouldn't get anything like power shower flow at the showers.
We haven't considered just having a new vented system, as thought unvented gave better performance...
Regardless of choice, it's likely the boiler will be replaced anyway.
Finally we are thinking of underfloor heating in the two new rooms, possibly wet as I hear it's more efficient...
Thoughts and opinions would be great, thanks all.
PS I've read the older threads on similar topics but most seem to date 2-4 years ago, so wanted up-to-date advice.