inconel
2016-06-07 21:53:21
- #1
Hello everyone,
for my house construction, which begins next year, I would like to inform myself about the heating system, specifically about the two systems:
+ Gas condensing boiler, supported by approximately 12m² solar thermal and a wood stove
+ Groundwater heat pump supplied by photovoltaic system
Zum Objekt:
+ Planned is a 10x11m house with two full floors, basement, hipped roof with about 35m² roof area facing south and about 200m² living space.
+ Exterior wall with 36.5cm perlite-filled bricks "Poroton T7"
+ Location: Bavaria, approx. 1000 kW/m² solar radiation on annual average
Variante 1: Gasbrennwertheizung
Advantages:
- Mature, durable gas condensing technology (efficient)
- Fast response of the gas heating, no long lead time needed
- From about April to October heat energy from the solar modules sufficient (no gas needed), in winter support by wood stove, both hot water and heating
Disadvantages:
- Solar modules must be cooled relatively early in summer, i.e. little hot water is needed but it must be removed from the panels -> increased electricity and water costs without added value
- Large domestic hot water storage required to use the anticyclical heating periods
Variante 2: Photovoltaik mit Wärmepumpe
Advantages:
-Autonomous heat and electricity production
-"Green energy"
-Additional support for other continuous power consumers (fridge, freezer chest, washing machine, dryer)
-Relatively low effort to install suction and intake wells, since groundwater is already at approx. 2.5m depth.
Disadvantages:
- High investment costs, both photovoltaic and heat pump (long amortization)
- Little sun available in months with high energy demand
- Complex and expensive, but still necessary storage options for photovoltaic electricity
I hope you can understand my concerns and ideas somewhat and I would greatly appreciate feedback. How do you see the situation? What is really sensible?
Thank you very much
Best regards
for my house construction, which begins next year, I would like to inform myself about the heating system, specifically about the two systems:
+ Gas condensing boiler, supported by approximately 12m² solar thermal and a wood stove
+ Groundwater heat pump supplied by photovoltaic system
Zum Objekt:
+ Planned is a 10x11m house with two full floors, basement, hipped roof with about 35m² roof area facing south and about 200m² living space.
+ Exterior wall with 36.5cm perlite-filled bricks "Poroton T7"
+ Location: Bavaria, approx. 1000 kW/m² solar radiation on annual average
Variante 1: Gasbrennwertheizung
Advantages:
- Mature, durable gas condensing technology (efficient)
- Fast response of the gas heating, no long lead time needed
- From about April to October heat energy from the solar modules sufficient (no gas needed), in winter support by wood stove, both hot water and heating
Disadvantages:
- Solar modules must be cooled relatively early in summer, i.e. little hot water is needed but it must be removed from the panels -> increased electricity and water costs without added value
- Large domestic hot water storage required to use the anticyclical heating periods
Variante 2: Photovoltaik mit Wärmepumpe
Advantages:
-Autonomous heat and electricity production
-"Green energy"
-Additional support for other continuous power consumers (fridge, freezer chest, washing machine, dryer)
-Relatively low effort to install suction and intake wells, since groundwater is already at approx. 2.5m depth.
Disadvantages:
- High investment costs, both photovoltaic and heat pump (long amortization)
- Little sun available in months with high energy demand
- Complex and expensive, but still necessary storage options for photovoltaic electricity
I hope you can understand my concerns and ideas somewhat and I would greatly appreciate feedback. How do you see the situation? What is really sensible?
Thank you very much
Best regards