Modifying HVAC Templates for ERV and Ducted Mini-splits


I have several residential projects (single- and multi-family) using an ERV system with heat recovery for balanced ventilation and ducted mini-splits (air source heat pump) for heating and cooling. However, none of the HVAC templates within Sefaira seem to match this configuration. Do you have any suggestions or workarounds?

I have already check out this support page:

And this old forum topic: How to analyze residential single family project with ERV and mini-split unit

Thanks in advance,


All DOAS systems have ERV. From your description System 2 (PTHP) would be the best choice for your residential project.

Hope this helps!

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