Had a similar thing happen to a smaller chain here years ago. Someone came in and had this big spreadsheet of how much the heat was costing them off the rack due to the energy the compressors used to provide that heat. Then they showed "how much more cost effective" it was to run gas than "running all those compressors". Numbers looked astounding, except for the fact the compressors are still running, which they ever so quietly left out of the final numbers, regardless if you are using heat reclaim or not.
And JP, I doubt it will take more than 6 months to come full circle when they see nothing really changed except the additional cost of heating without reclaim.
I can't fix it if it won't stay broke..