Oil Boiler query

Hi,
am about to lay pipes under floor for a new extention on a 3 bed.
Hopefully ye can answer some questions for me.

Do all internal oil boilers have 1" inlet/outlet connections ?

If I run copper for 1 meter, can I reduce to 3/4" qual barrier pipe for rest of floor ?
Can I get 1" to 3/4" 90deg bends - reduce and bend at the same time ?

If I want to connect a Waterford Stanley stove - running on oil - what size of insulated copper do I need to run to it -same as tank to boiler -10mm insulater copper ??

edit - is there a wall mounter oil boiler ?? any good makes app 100k btu - and is there a problem with oil pressure from the external oil tank with a wall mounted boiler.

thx folks

Most boilers come with 1"BSP connections if I'm not mistaken. The reducing elbows you are looking for should be available but a browse through www.sanbrafyffe.ie (Irish Instantor) should tell you what's available. 3/4" Barrier Qualpex should be ok after first 1metre from boiler. Not sure about the rest.

Check the previous posts about heating/central heating. For a good choice of boilers visit the Sedbuk page.