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.
Most space heaters are 120 volts, but some wall heaters designed for home use are rated at 240 volts and are just as powerful as garage heaters. BTUs. A BTU is a unit of energy used globally in heating and air conditioning industries, but not commonly used elsewhere. When used as unit of power, BTUs per hour is the commonly used term that refers to the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. To convert watts to BTUs and vice versa, here are the conversion ratios: