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There are many options available for home heating using various forms of energy. Consideration when selection the type of fuel used can include cost, convenience, availability and contribution to global warming though CO2 emissions.
Below are several heating options listed by fuel type (in no particular order):
Electricity:
Electric heat pump split system standard
Heat pumps split system inverter technology
Heat pumps ducted
Electric fan heater
Electric oil column heater
Electric under floor night
Electric radiant
Electric ceiling panels distributed
Electric panel
Electric ceiling heating radiant
Electric night store
Wood:
Pellet fire
Pellet central heating
Enclosed wood burner
Enclosed multifuel burner wood as main fuel
Wood central heating
Open wood fire
Fossil Fuel:
Diesel burner
Diesel central heating
Gas central heating Natural Gas or LPG
Portable gas unflued LPG
Enclosed multifuel burner coal as main fuel
Gas radiant Natural Gas or LPG
Gas convection Natural Gas or LPG
Gas enclosed flame effect Natural Gas or LPG
A full report on these heating methods has been completed for the Ministry for the Environment by EnergyConsult Pty Ltd of Australia and Strategic Energy Ltd of Christchurch.
The report Warm Homes Technical Report: Detailed Study of Heating Options in New Zealand Phase 1 lists in detail the type of fuel, pros and cons for each heater and an estimated cost.
Please note that this report was completed in November 2005, and some fuel prices will have changed, as well as some comments such as wood pellets being in short supply are no longer valid.
A PDF copy of the report can be downloaded by clicking here: warm-homes heating-options-phase1 
At the same time, Phase 2 of this report produced a number of case studies from an Excel model that was developed to identify best space heating options for homes. The case studies are outlined in this report, which can be downloaded here: warm-homes-heating-options-phase2
Further information from the Ministry for the Environment on energy related matters is available from their website by clicking here: http://www.mfe.govt.nz/publications/energy/
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