There are two easy ways to do this one is by phone with Venstar thermostat model number T1900 with comfort call model #Acc0433 and the other which gives you much more control is by internet. Of course if you plan on the first plan of action you need a phone line, many people have disconnected their phone lines for their second home and just use their portable phones. If there is a phone line the comfort call model number ACC0400 is a very inexpensive solution and allows the homeowner to check the temperature and humidity in the house, the temperature outside if you install an outdoor temp sensor model #ACC0400 and to change from comfort settings let's say 72 cooling and 70 heating to energy savings when they are not there let's say cooling above 85 degrees indoor temp and 40 degrees indoor temp for heating. The temperatures they desire are set by the homeowner and can be any temperatures they like.

The system is very easy to install (just connect the answering device comfort call model #acc0433 to any phone line and then that device transmits wirelessly to the plug in device at the thermostat. The thermostat must be a Venstar model number T1800 or model number T1900 if you want humidity control. The device will not interfere with the ordinary phone conversations or an answering machine.

A better way is to use an internet wifi enabled thermostat the color touch model T5800 will give you and the homeowner all kinds of ability. You and or the homeowner can change the room temp to any temp you want from any place in the world with a smart phone or a computer. You can set it up to send you and/or the homeowner an e-mail if the temperature in the house gets below or above any temp you set. You can look at any time to see what the weather forecast is for the house for the next 3 days what the high and low temperatures were for outside and inside the house and you can even trouble shoot the HVAC system to make sure everything is working correctly. The thermostat will also send by e-mail and on your and the homeowners i-phone and/or computer service alerts when it is time to change filters, or have the unit serviced.

The phone solution should run about $175 while the WIFI thermostat will cost about $200. You will need to purchase the T5800 and the ACC0454 skyport wifi key to use a wifi enabled thermostat. The home of course will also need to have the internet and a wifi modem.