HVAC

1
HVAC

• By Kelly Van Caeyzeele

2
What is HVAC ?

• HVAC stands for heating, ventilation and air
  conditioning.
• HVAC systems help to control the temperature in
  your house. Whether it be keeping you warm on a
  cold winter night or keeping you cool in the
  midst of a summer heat wave.

3
Roof Top HVAC

• Rooftops are an ever popular way of providing
  heating and cooling to many businesss these days
  as they take up unused space on top of commercial
  buildings.

4
Under Floor Heating

• Under floor heating is becoming an ever popular
  way of heating single rooms or entire houses.
• Under floor heating works on the principle that
  hot air rises and by having it on the lowest part
  of the room it rises evenly across the entire
  room providing an efficient way to heat any home
  or business.
• Also you dont get that horrible feeling of
  waking up in the morning to an ice cold floor.

5
Geothermal Heating

• Benefits to the Commercial Institutional Sector
• The energy used by the commercial sector accounts
  for about 13 of total energy demand in Canada,
  and about the same amount of greenhouse gas
  emissions from secondary energy use.
• In commercial buildings, more than half the
  energy used is for space heating. The high demand
  for space conditioning means that
  commercial/institutional facilities could
  significantly reduce their greenhouse gas
  emissions by using renewable energy sources
  instead of the carbon-intensive fuels required by
  conventional systems, and by improving energy
  efficiency to reduce their overall energy use.
• Geothermal heating is one of the most efficient
  ways to heat a building, but it has high initial
  costs for drilling the wells deep enough into the
  earth to take advantage of the earth's
  temperature. It also has ongoing costs for the
  electricity to power the pump and heat pump
  compressor.

6
What is Geothermal Heating and Cooling?

• Geothermal Heating is a method of heating and
  cooling a building using underground heat.
• Benefits to the Residential Sector
• Residential heating and cooling needs in Manitoba
  are mainly met by either natural gas or
  electricity.
• Geothermal heat pumps are one of the most
  environmentally beneficial heating systems
  available. These systems offer homeowners the
  opportunity to significantly reduce their heating
  costs.
• Manitoba Hydro has lunched a Geothermal Heat Pump
  Program to make this renewable energy technology
  more accessible to Manitoba homeowners.

7
Solar Heating

• Solar heating is a style of building construction
  which uses the energy of sun light to provide
  heat in a structure.
• Active solar heating uses pumps which move air or
  a liquid from the solar collector into the
  building or storage area.
• Passive solar heating relies on the design and
  structure of the house to collect, store and
  distribute heat throughout the building. The rays
  of the sun fall onto a masonry wall, for example,
  during the daytime and the wall radiates heat in
  the evening. A well designed adobe house will use
  principles of passive solar heating to heat the
  house.
• In Manitoba Solar heating is used for everything
  from heating your house to heating swimming
  pools.

8
Controllers

• Controllers are becoming more And more
  sophisticated as technology progresses.
• Most are now digital and can be set to lower the
  temperature while you are gone to conserve energy
  and warm the house before you return.

9
Solar Controllers

• The Solar Controller is the brain of our solar
  system.
• The controller monitors the temperature in the
  solar collector located on the roof and also the
  temperature in the water cylinder or in the
  swimming pool.
• During the night the collector will not collect
  any energy so the controller will switch the
  circulation pump off.
• As the sun rises the collector will warm, as soon
  as the controller senses that the collector is 6
  higher in temperature than the water in the tank,
  the controller starts the solar pump, which
  transfers the heat to the cylinder or swimming
  pool.
• Some of the controllers we use can also store and
  output data to a computer or digital display.

10
Whats new and available to people in Manitoba?

• Earth Power program with Manitoba Hydro
  (Geothermal)
• Solar Heating - Available everywhere from
  Wal-Mart to EBay.
• Floor heating - About 190 businesses in and
  around Winnipeg, MB involved with floor heating.

11
References

• http//www.elektra-underfloor-heating.co.uk/
• http//www.aquatech.ie/brochuresquotations.htm
• http//en.wikipedia.org/wiki/Geothermal_heating
• http//www.gov.mb.ca/est/energy/initiatives/geothe
  rmal.html
• http//www.gov.mb.ca/est/climatechange/pdfs/solarh
  eating.pdf