I'm on record and get regular push back for it that electrification is the true climate wedge and envelope efficiency is mostly an economic factor for owners and leasers, not a climate wedge.

As one of the points I made in this piece shows, Jevons Paradox applies strongly to building heating and cooling. The 55,000 household study in the UK found gas use returned to pre-insulation use within four years at most, so zero climate savings, just increased comfort.

I'm focused on climate solutions. Efficiency without electrification doesn't rank.