This article explores the new macro designer and other new macro features available in Access 2010. After reading this article, you will be able to take full advantage of what Access 2010 macros have to offer.
Rules For Sizing Your Heat Pump Pool Heater. 1  Size at 4 BTUâs per gallon or 1 BTU per litre of water. To heat in normal summer conditions when ambient air temperature average 70Â°F in a 24 hour period.  Size at 5 BTUâs per gallon or 1.3 to 1.5 BTUâs per litre of water.
You can calculate the exact number of gallons for your pool here. **Heat pumps only go up to 140k BTU. For pools over 25k gal, a 140k BTU heat pump will raise temp closer to Â½. or Â¾. degrees per hr. Est.