Abstract: A fluid dispensing system comprises a first pipe, a second pipe and a thermoelectric generator. The first pipe is configured to carry fluid to the fluid dispensing system. The second pipe is configured to carry fluid to the fluid dispensing system. Temperature of the fluid carried by the first pipe is higher than temperature of the fluid carried by the second pipe. The thermoelectric generator comprises a first side and a second side. The first side of the thermoelectric generator is in thermal contact with the first pipe. The second side of the thermoelectric generator is in thermal contact with the second pipe. Temperature gradient is established between the first side and the second side due to difference in temperature in the first pipe and the second pipe. Electric current is generated by the thermoelectric generator as a result of the temperature gradient.

Abstract: A method for conditioning at least one room comprises receiving a first temperature target for a first room; determining a current temperature of the room; determining a first amount of forced air required to reach the temperature target based on a thermal inertia of the first room and the current temperature; powering on an HVAC blower; and powering off the blower once the determined first amount of forced air is blown.

Abstract: A fluid dispensing system comprises a first pipe, a second pipe and a thermoelectric generator. The first pipe is configured to carry fluid to the fluid dispensing system. The second pipe is configured to carry fluid to the fluid dispensing system. Temperature of the fluid carried by the first pipe is higher than temperature of the fluid carried by the second pipe. The thermoelectric generator comprises a first side and a second side. The first side of the thermoelectric generator is in thermal contact with the first pipe. The second side of the thermoelectric generator is in thermal contact with the second pipe. Temperature gradient is established between the first side and the second side due to difference in temperature in the first pipe and the second pipe. Electric current is generated by the thermoelectric generator as a result of the temperature gradient.

Abstract: A method for conditioning at least one room comprises receiving a first temperature target for a first room; determining a current temperature of the room; determining a first amount of forced air required to reach the temperature target based on a thermal inertia of the first room and the current temperature; powering on an HVAC blower; and powering off the blower once the determined first amount of forced air is blown.

Abstract: A smart air filter housing is provided comprising at least one air filter frame connected to a data measurer and having a wireless communicator. The wireless communicator may interface directly with an HVAC system controller. The data measurer may be a humidity sensor, a temperature, air quality sensor, a microphone, or any other sensor capable of detecting qualities of the air flowing through the HVAC return chamber. The smart air filter housing may be embodied by having a compliance determiner to determine whether an inserted air filter is suitable to the smart air filter housing. The smart air filter housing may also be embodied by having an energy harvester.

Abstract: A smart vent system is provided comprising at least one smart vent having a wireless connection to a gateway which interfaces directly with the HVAC system to control the HVAC system's operation, thereby bypassing or rendering unnecessary any thermostats that would normally control the HVAC system. The smart vent has a user device link for communicating directly with a user device. The gateway may be configured to either communicate with a smart thermostat or control the HVAC system directly. The smart vent may be embodied in either one device or two intercommunicating devices.