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Radiant Heating and Cooling Systems

ObjectivesIntroduction Terminology Why Radiant Heat? HEATING SYSTEMVarious Construction MethodsTUBING ARRANGEMENTSINSULATION METHODSRecommended Insulation Practices Controls APPLICATION OF RADIENT HEATING

Definition

A system to heat and cool buildings that relies primarily on radiation heat transfer. Typically, heated or chilled water is circulated though floor or ceiling panels to condition the space

TerminologyBOILERDOMESTIC HOT WATER HEATERHEAT EXCHANGERCLOSED SYSTEMOPEN SYSTEMPOTABLEDIRECT SYSTEMINDIRECT SYSTEM

Why Radiant Heat?Nicest heat on EarthComfortableClean and HealthfulChild friendlyUnobtrusiveEnergy-EfficientLess Costly To Purchase

Types of Radiant Floor HeatingRadiant air floorsElectric radiant floorsHydronic radiant floors

Wet installationDry installation

Heating systemThe Open/Direct System

CLOSED SYSTEM

The Indirect System

Wet Installation

Dry Installation

Various Construction Methods

Slab on Grade or Below Grade - Wire Ties

Slab on Grade or Below Grade - Foam Staples

Lightweight Pour over Suspended Subfloor - Tube Support Channels

Suspended Floor Using Snap Plates AboveSubfloor - Sandwich Method

TUBING ARRANGEMENTS

BALANCING VALVES

Tubing Layout Patterns

Counter Flow Pattern

INSULATION METHODS

R-value: Measure of thermal resistanceAerogelis an extremely efficient man-made insulator and has a very high R-value.

Styrofoam Boards

ControlsThermostat and its control unit

OTHER APPLICATION OF RADAINT HEATING

SNOWMELT

Accomplishing Both Heating and Cooling

CONCLUSION

The small temperature difference means that about 30% to 50% of the ceiling or almost the entire floor area must be available as heat transfer surface.Radiant floor tubing can also be used to cool a house, but presently it is only appropriate for dry climates.

References

Wikipediahttp://www.midamericanenergy.com/http://www.energy.ca.gov/pier