The Lux TX1500E Programmable thermostat is one of the most popular programmable thermostats on the market. It combines great value for money with everything you could want from a programmable thermostat. Only $40, the Lux TX1500E is compatible with most heating and cooling systems, has 4 different periods a day you can program, shows relative humidity, has a lock out feature, and has swing control. The Lux TX1500E Smart Temp Programmable Thermostat is Energy Star Rated. In just three months this programmable thermostat can pay for itself in energy saved.

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The Lux TX9000TS Touch Screen 7-Day Programmable Thermostat is the next model up from the TX1500E. It has all the features of the Lux TX1500E such as four different programmable periods per day, swing control and lock out feature. But for under $70 you also get touch screen control. The control panel also features audio confirmation. This feature is ideal for those people with poor eye-sight as the auditory confirmation allows the user to be certain that the thermostat has been programmed.

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The Honeywell RTH221B Basic Programmable Thermostat is suitable for people who don't need all the extra functions that other programmable thermostats offer. For only $22 the Honeywell RTH221B offers 4 programmable periods in a day. It doesn't have a vacation setting and doesn't tell you when you need to change the filter. The main thing to note about this excellent thermostat is that it cannot be installed onto multi-stage heating and cooling systems, only single stage, central gas or electric furnaces.

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The Honeywell RTH7600D Touchscreen 7-Day Programmable Thermostat is one of the top of the range programmable thermostats by Honeywell. It costs $84 and has nearly everything you could possibly want from a programmable thermostat: 4 programmable periods per day; weekend settings, vacation settings, filter replacement warning, low-battery warning and easy to use touchscreen interface. Unlike the RTH221B, the Honeywell RTH7600D is compatible with nearly any 24 volt system, single and multi stage systems, heat pumps and gas fire places. The thermostat is accurate to +1/-1 degrees, but doesn't have swing control so might not be ideal for people living in extreme weather conditions.

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The Hunter 44550 Auto Save 7-Day Programmable Thermostat is a very reliable programmable thermostat that has got many good reviews on Amazon. Like all the thermostats above it lets you set up 4 different periods of temperature for a day. The Hunter 44550 has a backlit screen and is easy to program. It has a useful 'stay at home' override button and most importantly it allows you to set the range of the thermostat so its not continually turning the HVAC on and off with every small dip or rise in room temperature. As with all the above thermostats it is Energy Star rated. It can be installed to single stage systems, a heat pump, air-con and a furnace.Only $38.

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