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Thank you sooo much! this is the exact kind of idiot proof guide I need. hopefully it'll be beer sooner rather than later 🍻 Yeah, id just topped up a bit here and there after normal lose/rad bleeding/and a tiny leak i had. used only water as was advised it anti/water dont mix that well in system and really needs doing before filling.

Well its mainly to refill with antifreeze/water and just thought it was a good idea after 3 yrs of toppping up with just water ok thanks. its the calorifier loop bit that im not sure about, lots of pipes and im not confident with it. just my look a flood boat and messs up my heating as the cold nights draw in 🙃

Had the system 3yrs now and the radiator water level is just below the min line. So i want to drain and replace with new water/antifreeze rather than just top up with water. It heats my tap water, and runs my rads. I have 3 rads and the one furthest from the heater has a drainage tap near it (15mm plastic pipe). My question is, is it purely a matter of draining it, closing tap and refilling via the header tank? or do i need to close of any other parts of the system? repressurise? etc

I do have a separate tank for the heater. That’s good to know, thanks.

If I’m on a 0500 start it means there’s a little heat and hot water before I go out. If I’m on a 0000 finish it means I can clean properly before bed. It is a good little back up.

I’m doing a 1hr commute, 5 days a week at the moment (Nantwich > Man Airport) in my van, so I just insert the nozzle and close my eyes anyway.

I only use it for an hour before and after work, so should be able to get it from marina, but good to know as a back up. ??

Brilliant. Thank you

Hello all. well what an interesting time to start living aboard a narrowboat! Im currently having to keep working and the marina I’m at is only opening for a few hours a week, understandably. I want to top up my tank for my Eberspatcher, question is, can I just use diesel from a petrol station for the heater? sorry if it seems a daft question, but last thing I want is broken heating with the current situation. thanks