The data is available here.
The top ten postcodes for payouts are:
BT71 = 74
BT78 = 62
BT70 = 61
BT60 = 40
BT80 = 37
BT79 = 35
BT45 = 33
BT92 = 27
BT61 = 26
BT42 = 26
Most of these are contained within the black line in the map below:
map license: Creative Commons Attribution-Share Alike 3.0 License
map link: https://en.wikipedia.org/wiki/File:BT_postcode_area_map.svg
map created by: Richardguk
The maximum payout (up to Feb 28 2017) is: £252,844.05
The minimum payout (up to Feb 28 2017) is: £73.22
The total payout (up to Feb 28 2017) is: £27,418,000.60 - to put this in some context it is estimated that to clear the backlog of patients waiting for treatment (in some cases more than 1 year) on the NHS in N.Ireland would cost around £30,000,000.
The tecnology type used is almost entirely solid biomass boiler.
Solid Biomass Boiler = 868
Ground Source Heat Pump = 1