Navitron Renewable Energy and Sustainability Forum

Green Building and Design => Green Construction/DIY => Topic started by: guydewdney on February 21, 2018, 08:05:27 PM



Title: Sub 100kw oil boiler modulating or two stage?
Post by: guydewdney on February 21, 2018, 08:05:27 PM
Anyone know of a range of two stage or modulating oil burners below 100kw? Ours is 70kw and is underused a fair while, and I can see how a two stage boiler would be a great advantage. Itís a Riello 3.2 model at the moment.


Title: Re: Sub 100kw oil boiler modulating or two stage?
Post by: rogeriko on February 21, 2018, 08:29:32 PM
Theres nothing stopping you putting a 20kw boiler in parrallel with your big one, just turn on whichever is needed according to the weather. Dont forget to install one way valves on the flow of each and NO valves on the return.


Title: Re: Sub 100kw oil boiler modulating or two stage?
Post by: TT on February 22, 2018, 07:03:48 AM
Pretty much all of the boiler manufacturers will do this have a google for cascade boilers


Title: Re: Sub 100kw oil boiler modulating or two stage?
Post by: gb484 on February 25, 2018, 10:48:13 AM
Try nu way: https://nu-way.co.uk/burners-1/oil-burners/mo-series


Title: Re: Sub 100kw oil boiler modulating or two stage?
Post by: Philip R on February 25, 2018, 01:12:06 PM
Guy,

have a look  at   http://www.eogb.co.uk/two-stage-26-4151-kw/

Philip R