Adding DHW Storage to a Combi Boiler?

[gaz1]

I thought another big issue with legionella is frequency of use? Temperature is one factor but if the water sits stagnant for long periods too (e.g. potentially hotel shower heads) then this is a big factor? Much less likely in a family house?

try central heating tank in loft still around after all these years same with cylinders in use still

 

[DAPPH]

Obviously you have never worked on anything other than your own house? The temp of the water is only one factor.
Yes chances are you will be OK but if you actually listen to people who know then you can ensure you are safe.

My current role involves low temperature systems so legionella and the potential for legionaires is a very real possibility for me every day

At one place I worked I was nominated to look after the open air falling water coolers it wasn't long before legislation changed and everything was ripped put and an enclosed cooling system was put in place so no water vapours could affect the public going by or the workers inside the building when the doors or windows were opened

 

[Kayos]

try central heating tank in loft still around after all these years same with cylinders in use still

But if the tank is warm there is an issue, even with the heating on full the tank shouldn't rise above ambient

 

[Gareth J]

Current house has MVHR fitted in 1989.

Wouldn't live without one. Incoming air filtered so no hay fever problems. No condensation on bedroom windows in the morning. Bathroom condensation cleared before I've finished drying myself. Fresh air everywhere all the time and no draughts. Bliss!

If we proceed fitting a modern MVHR would be one of the first jobs - even before sorting out the garage.

Good to hear a real world experience. I have been curious for a bit and have left space for a small one in a new lean-to. But have been put off by the cost, faff, maintenance and the fact it's in a porch that's cobbled onto the side of an ancient house with open floor voids and wall vents in some rooms. Maybe in the future if the main house gets more sealed. Or just as a small unit for the new lean to.