“…by payback period, suitability (compatibility) of house, affordability, house ownership (privatelyowned, single-family house), remaining in house, available knowledge and household income[4,21,41,52,56,59,72,74,78,92].Perceived risk stems from the trust and uncertainty of the consumer. Uncertainty covers financial aspects, technical aspects and the consequences of the decision[11,12,15,16,44,49,52,56,72,73,85,[93][94][95][96][97][98][99], whereas trust mainly deals with the susceptibility of the consumer to information channels[4,11,14,18,27,40,41,50,64,65,68,69,93,97,[99][100][101].…”