Hi Folks,
Really need some help on behalf of my folks, they have a new build 1.5 years in it, built with energy efficiency in mind from the off which was built into the fabric of the house, concrete with internal/external insulation, air tightness test, heat recovery vents, solar panels, underfloor heating and a very hungry boiler.
I'm getting all my information from my father who it has to said may have some details wrong but he is worried hugely about the cost and usage of pellets. They currently use bags and are in the process of switching to bulk.
This is based on a house of 1800 square feet, with two older adults using average amounts of hot water and most of the zones turned to the minimum. The main thermostat is set to 15 degrees and the other zones have controls to change plus or minus 4 degrees of the main thermostat temp.
I ascertained that the house is looking to maintain 15 degrees 24/7 with an increase of about 2 degrees in the evening in the main living area.
I have been told that the usage in about 3.5 weeks is approx 100 bags or 1 tonne. Since they bought the boiler it seems to be consuming more fuel, it is cleaned regularly both ashes and rods.
They have been told unofficially that the boiler they have is based on an old inefficient design and the model is being replaced with new boilers in new install.
Based on the above 'facts' - does this sound like a problem? For the size of the house is the usage too much, he is convinced he is using twice what he should be.
Thanks for taking the time to read. I'm no expert and need your help.
majj
Really need some help on behalf of my folks, they have a new build 1.5 years in it, built with energy efficiency in mind from the off which was built into the fabric of the house, concrete with internal/external insulation, air tightness test, heat recovery vents, solar panels, underfloor heating and a very hungry boiler.
I'm getting all my information from my father who it has to said may have some details wrong but he is worried hugely about the cost and usage of pellets. They currently use bags and are in the process of switching to bulk.
This is based on a house of 1800 square feet, with two older adults using average amounts of hot water and most of the zones turned to the minimum. The main thermostat is set to 15 degrees and the other zones have controls to change plus or minus 4 degrees of the main thermostat temp.
I ascertained that the house is looking to maintain 15 degrees 24/7 with an increase of about 2 degrees in the evening in the main living area.
I have been told that the usage in about 3.5 weeks is approx 100 bags or 1 tonne. Since they bought the boiler it seems to be consuming more fuel, it is cleaned regularly both ashes and rods.
They have been told unofficially that the boiler they have is based on an old inefficient design and the model is being replaced with new boilers in new install.
Based on the above 'facts' - does this sound like a problem? For the size of the house is the usage too much, he is convinced he is using twice what he should be.
Thanks for taking the time to read. I'm no expert and need your help.
majj