3d
3d illustration
absorber
alternative energy
architecture
arrow
building
chimney
classic house
colonial
colonial house
comment
definition
detached house
diagram
doodle
door
energy
energy source
environment
exchanger
floor heating
geothermal
geothermal heat pump
ground source heat pump
ground water
hand drawn
handdrawn
heat
heat pump
heating
home
house
illustration
model
note
power
renewable energy
sketch
solar flat panel
solar heating
solar heating system
solar panel
solar water heater
technology
text
underfloor heating
warm
warmth
定額
diagram of a classic colonial house with floor heating and ground-source heat pump and solar panels on the roof as source of energy for heating and floor heating and red hand drawn technology definitions over itの素材 [FY31068479463]
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