flatcoat fan Posted May 9, 2008 Share Posted May 9, 2008 Am in the process of putting in a heating system running off a Villager Woodburner with back boiler, but need a header tank with ball valve as an expansion tank. Can't seem to find one anywhere - has anyone got any ideas where to buy one. Am living near Limoux but anywhere near would be great, better than having to send to the UK! Link to comment Share on other sites More sharing options...
Jacqui Too Posted May 9, 2008 Share Posted May 9, 2008 They don't seem to like them in France, something to do with not storing water in an open system.I too wanted to put in a open system when I wanted to use my Rayburn to do the hot water and was advised to use a sealed system which can not be used with a multi-fuel back boiler.So we decided to go for a cooker only Rayburn instead and have an immersion for the hot water.If you really want one you may have to buy in in UK, but some one else might know as the French do use wood burners a lot. Link to comment Share on other sites More sharing options...
Anton Redman Posted May 9, 2008 Share Posted May 9, 2008 Find an old fashioned ball valve for use in a toilet. Find a strong water container which you would use for storing rain water. You should now have what you need. Link to comment Share on other sites More sharing options...
geoff Posted May 9, 2008 Share Posted May 9, 2008 [quote user="Anton Redman"]Find an old fashioned ball valve for use in a toilet. Find a strong water container which you would use for storing rain water. You should now have what you need.[/quote]You can get a ball valve from U.K. on the net sent to France then a strong builders bucket,and your away. Link to comment Share on other sites More sharing options...
Ron Avery Posted May 9, 2008 Share Posted May 9, 2008 ............and when your house floods when the joint/hole/bucket splits what do you tell the insurance?Why try and introduce a UK component to a French system and devalue your house. All the French systems have a sealed tank, why not just use one of those? Link to comment Share on other sites More sharing options...
geoff Posted May 9, 2008 Share Posted May 9, 2008 [quote user="Ron Avery"]............and when your house floods when the joint/hole/bucket splits what do you tell the insurance?Why try and introduce a UK component to a French system and devalue your house. All the French systems have a sealed tank, why not just use one of those?[/quote]Do-not sealed tanks leak then?May not, just go [8-)] Link to comment Share on other sites More sharing options...
LesFlamands Posted May 10, 2008 Share Posted May 10, 2008 You don't. Just use the French tank with the overflow connected so it is visible and top it up from time to time. Link to comment Share on other sites More sharing options...
Ron Avery Posted May 10, 2008 Share Posted May 10, 2008 [quote user="geoff"][quote user="Ron Avery"] ............and when your house floods when the joint/hole/bucket splits what do you tell the insurance?Why try and introduce a UK component to a French system and devalue your house. All the French systems have a sealed tank, why not just use one of those?[/quote]Do-not sealed tanks leak then?May not, just go [8-)][/quote] I think a sealed tank made for the job, would be less likely to leak or split than a heavy duty bucket don't you? Link to comment Share on other sites More sharing options...
Michael Posted May 10, 2008 Share Posted May 10, 2008 [To install uk way if you are going that route.]You install a villager with backboiler useing a minimum 4 gallon f/e tank on a open system with 20mm fr or 22 mm vent,the gravity primary pipework would be 28mm to the standard uk hws cly,pipework run should not exceed 20ft rising all the way.You do not use gravity primarys on unvented pressurised type mega flow hws etc etc.Michael. Link to comment Share on other sites More sharing options...
Le Plombier Posted May 10, 2008 Share Posted May 10, 2008 You can get a header tank in France, normally thay are a completely enclosd tank with a tapping on the top for the ventYou cannot use a conventional ballvalve due to the design of the tankThe French install woodburning equipment in sealed systems, most French contractors will refuse to install an open vented systemTo install a sealed system you must have a damper on the fire combustion air supply and an indirect tank through which cold water can be passed to cool the heating circuit. Both are safety devices and are thermostatically controlledWith a UK open vent system it is imperative that the facility to dissipate heat is designed and installed in the systemWith an uncontroled system, or one with inadequate allowance for heat dissipation, there is a risk of water boiling and forming steamThis may mean steam coming out of the open vent, safety valve or a blown joint. In the worst case it will mean a very big explosion as steam is a gas which is compressibleI am amazed at the number of amateurs who install these systems without really appreciating the potential danger and having the expertise to effect a correct installation. I my career in this industry I have seen, on major steam installations, immense damage done by explosions due to steamMake sure you really know what you are doingLe Plombier Link to comment Share on other sites More sharing options...
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