Plumbing for Heating upgrade for loft con

[Stants]

Hi All
Advise needed ( and gratefully received )
I have a bog standard ( excuse the pun )existing Central heating System ( I believe is a Gravity semi pumped system )
Lay out as followed
Boiler in Kitchen
Copper cylinder + grundfos pump and 3 way Valve in bathroom upstairs
CWSC + F+E tanks in loft
I'm converting my loft and I'd like to keep the same ( or as near as ) System as it's been so reliable
I having a small on suite with a shower
I'm proposing 3 options
What I'd like to down to what I may need to do

1 New uprated Boiler condensor ( prob Potterton or Worcester) in kitchen
Move / New Copper Cylinder, Pump up into loft along with 70 Gallon Coffin CWSC, F+E tank
Plus add Pump for Hot and Cold
and Rads
This is my preferred but think Space , Height ( minimum heights may come into play ) may be a big issue and not workable (Shame if it is :-(

2 New uprated Boiler condensor ( prob Potterton or Worcester) in kitchen

Leave Cylinder and Pump
Etc in first floor bathroom
( renew / upgrade all )

In loft New 70 Gallon Coffin CWSC, F+E tank
Plus add Pump for Hot and Cold and Rads

3 New uprated Boiler condensor ( prob Potterton or Worcester) in kitchen

Pressurised Mega flo
In loft and Rads


I'm aware you can get made to measure Cylinders and CWSC to maybe get option 1 to work
Plus up rating Gas and Water supply sorry if this is a big ask be Gentle

 

[SimonG]

What's incoming water pressure and flow?

 

[ShaunCorbs]

You only need one thread on the topic

Heating upgrade for loft Con

 

[Old Account]

I definitely would go for option 3 only if the pressure and flow rate are great. If you got more than 2 bathrooms I'd install a megaflo if you had 2 bathrooms I'd got for a condensing combi boiler but water pressure and flow rate needs checking first

 

[Stants]

You only need one thread on the topic

Heating upgrade for loft Con

Yeah I've just realised it gets tagged into other forums thanks

 

[Stants]

I definitely would go for option 3 only if the pressure and flow rate are great. If you got more than 2 bathrooms I'd install a megaflo if you had 2 bathrooms I'd got for a condensing combi boiler but water pressure and flow rate needs checking first

What's incoming water pressure and flow?

im checking this tomorrow hopefully