AUTOFLAME Mk8 MM - Page 149

9 Heat Flow
04.09.2016 Mk8 MM Expansion Features Installation and Set-Up Guide Page 139
UsefulHeatintoWater  TotalHeat
Efficiency
100
 20,472,840
80.67
100
 16,514,440BTU/hr


VolumeFlowinlbs/hr 
16,515,440
1
󰇛
185167
󰇜


 917,524.4lbs/hr


VolumeFlowincuftHr 
VolumeFlowinlbs hr
⁄
DensityofWateratReturnTemperature



917,524.4
60.68
 15,120.7cuftHr

VolumeFlowinUSG.P.M. 15,120.7cuftHr0.124676  1,885.2USG.P.M.
It can be seen from the above that by adding the expansion P.C.B. and a return temperature detector
to the Mk7 M.M. system that you get the following additional useful information.
“Useful heat into water” (BTU/hr) &
“Volume flow” (US G.P.M)