Photovoltaic-thermal collectors, or PVT, are in vogue. Because they simultaneously produce electricity and heat, they are a suitable energy source for heat pumps. Also, a PVT collector achieves a significantly higher...
Tag - wärmepumpe
Korbinian Kramer
Heat Pumps: Economic Consideration of Operating Costs, a New Perspective
Episode 13 of the blog series "heat pumps in existing buildings" on the current discussion on energy independence.
Marek Miara
How do we get more heat pumps in existing buildings?
Final episode of a series on heat pumps in existing buildings: We should have courage to bet on the right technology “The signs are unmistakable. […] the cost of inaction is — keeps mounting. […] We have to move quickly...
Can heat pumps only be used in one- and two-family houses?
Episode 11 of a series on heat pumps in existing buildings focuses on heat pumps in multi-family houses. Heat pumps are required in multi-family houses Heat pumps have a very wide range of applications. The building...
Is it better to combine a heat pump with fossil heating in some cases?
Episode 10 of a series on heat pumps in existing buildings that raises the question whether there is a benefit in installing a hybrid system in an existing building. To evaluate the usefulness of hybrid systems, we...
Is it worth waiting for technological developments before switching to a heat pump?
Episode 9 of a series on heat pumps in existing buildings Whether it’s worth waiting any longer to install a heat pump depends on two considerations: Is the technology at today’s level ready for satisfactory...
Isn’t heating with heat pumps too expensive?
Episode 8 of a series on heat pumps in existing buildings with economic considerations on operating costs However ecologically sound a technology may be, it will only gain acceptance if it brings economic benefits to...
How ecological are heat pumps in existing buildings?
Episode 7 of a series on heat pumps in existing buildings To mitigate the consequences of climate change, a drastic decrease in CO2 emissions is essential. As part of the “European Green Deal”, European...
How well have heat pumps performed in practice in partially refurbished and unrefurbished buildings?
Episode 6 of a series on heat pumps in existing buildings with two exemplary houses Good examples make complex topics more accessible. But what would be a “good” example of an old building with a heat pump...
How much does the use of back-up heaters reduce the efficiency of heat pumps?
Episode 5 of a series on heat pumps in existing buildings Heating systems with heat pumps are usually equipped with a direct-electric back-up heater. Usually, the electric back-up heater takes over the heat supply from...
How well do heat pumps really work in existing buildings?
Episode 4 of a series on heat pumps in existing buildings: Results from a monitoring project of air-source and ground-source heat pumps The question of how well a heat pump works can be answered by looking at several...
Does a house have to be renovated first in order to install a heat pump?
Episode 3 of a series on heat pumps in existing buildings Clearly, the less energy needed to create a comfortable indoor climate, the better. That’s why renovation measures to reduce heating energy demand always...
