Comparison of Atmos D25PX and Biotech PZ25RL pellet boilers

Is the Atmos or the Biotech pellet boiler better?


Solar thermal system maintenance

Do not believe that the solar system does not require maintenance. Of course, it works without it, fortunately for many years, but with a little care, its lifespan and efficiency can be significantly improved.


Heatloss Calculation Online

If you want to apply for Green Homes Grant or RHI payment or both beacause you wish to install a biomass heating system, you will need a heatloss calculation to determine the capacity of the required heat source (boiler/stove).
If you fill in this form, I will complete it for you. The calculation will not be just informative, but it will be MCS compilant.

Please note this is not a free service.


Comparison of flat solar collector and vacuum tube collector

Is a flat solar collector or a vacuum tube solar collector better?

Both have advantageous properties over the other. Let’s see what these are:


Solar Thermal System with Combi Boiler


  • DHW from solar cylinder or combi boiler. If the water of the solar cylinder is warm enough, it goes directly to the hot water taps. If it is not warm enough, it goes through the combi boiler preheated. Switchover is automatic by a motorised valve
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