I've been a lurker here for a while but haven't found a post that really addresses the specific query I have. I am doing a full house renovation and am taking the opportunity to add a ducted heat pump and ventilation system. We are adding it to the upstairs of our house, which is ~120 sqm. There is plenty of ceiling space and the house will also be well-insulated and double-glazed during the renovation. Here are the options being presented to me currently:
1) 16kw Mitsubishi PEA High Static Ducted Heat Pump System with integrated Lossnay heat recovery and ventilation. WiFi controls included - This option is pretty clear and I have seen plenty of comments on this forum that it is a good system
2) The other provider is recommending a Toshiba Ducted Heatpump system with a Moisture Master Heat Recovery and Ventilation System. This agent claims that this is more efficient in regard to heat loss than the Lossnay system (90% retention vs 70% for the Lossnay). Additionally, they claim that it is more efficient as the systems can be run separately and they can hook it up to the bathroom extractors to recover the heat from those systems as well. - This sounds attractive to me, but I am having trouble finding any reviews or information on this configuration.
I wanted to reach out here to see if anyone had experience with either or both of these systems and could possibly help steer me towards which would be a better option. I am located in Dunedin in a 1947 built house. As mentioned before, we will be undergoing a significant renovation, which will significantly improve the condition and efficiency of the house.
Many thanks in advance for any guidance!