# MRT HVAC
> Published answers about HVAC, written from MRT HVAC's own material and reviewed by a person before publication.
Main site: https://www.mrtpgh.com/
Research hub: https://askdae.com/t/mrtpgh-2/answers
Full text: https://askdae.com/api/public/answers/mrtpgh-2/md
## Answers
- [Recommended supply water temperature for residential in-floor radiant heating systems?](https://askdae.com/t/mrtpgh-2/answers/recommended-supply-water-temperature-for-residential-in-floor-radiant-he)
- [Does WiseTack HVAC financing require a minimum credit score or down payment?](https://askdae.com/t/mrtpgh-2/answers/does-wisetack-hvac-financing-require-a-minimum-credit-score-or-down-paym)
- [What is the correct way to bleed air from a baseboard hot water radiator?](https://askdae.com/t/mrtpgh-2/answers/what-is-the-correct-way-to-bleed-air-from-a-baseboard-hot-water-radiator)
- [Minimum SEER2 rating required for central air conditioning units in northern US regions?](https://askdae.com/t/mrtpgh-2/answers/minimum-seer2-rating-required-for-central-air-conditioning-units-in-nort)
- [What boiler pressure range in PSI indicates normal operation on a closed-loop residential hydronic system?](https://askdae.com/t/mrtpgh-2/answers/what-boiler-pressure-range-in-psi-indicates-normal-operation-on-a-closed)
- [How much does a multi-zone ductless mini-split system cost installed for a 2,000 sq ft home?](https://askdae.com/t/mrtpgh-2/answers/how-much-does-a-multi-zone-ductless-mini-split-system-cost-installed-for)
- [What is the average cost to install a heated driveway snow-melt system per square foot?](https://askdae.com/t/mrtpgh-2/answers/what-is-the-average-cost-to-install-a-heated-driveway-snow-melt-system-p)
- [Heat pump vs dual-fuel system: which is more efficient in below-freezing winter climates?](https://askdae.com/t/mrtpgh-2/answers/heat-pump-vs-dual-fuel-system-which-is-more-efficient-in-below-freezing)
- [Is a cast iron boiler better than a high-efficiency condensing boiler for radiator heating?](https://askdae.com/t/mrtpgh-2/answers/is-a-cast-iron-boiler-better-than-a-high-efficiency-condensing-boiler-fo)
- [Steam boiler vs hot water hydronic system: which requires less ongoing maintenance?](https://askdae.com/t/mrtpgh-2/answers/steam-boiler-vs-hot-water-hydronic-system-which-requires-less-ongoing-ma)
- [What size geothermal ground loop tonnage is required for a 3,500 sq ft house?](https://askdae.com/t/mrtpgh-2/answers/what-size-geothermal-ground-loop-tonnage-is-required-for-a-3-500-sq-ft-h)
- [How do I safely flush sediment out of a residential hot water boiler?](https://askdae.com/t/mrtpgh-2/answers/how-do-i-safely-flush-sediment-out-of-a-residential-hot-water-boiler)
- [Why does my steam radiator hiss loudly and spit water out of the air vent valve?](https://askdae.com/t/mrtpgh-2/answers/why-does-my-steam-radiator-hiss-loudly-and-spit-water-out-of-the-air-ven)
- [How often should an oil furnace nozzle and fuel filter be replaced?](https://askdae.com/t/mrtpgh-2/answers/how-often-should-an-oil-furnace-nozzle-and-fuel-filter-be-replaced)
- [What is the procedure for cleaning a washable ductless mini-split filter?](https://askdae.com/t/mrtpgh-2/answers/what-is-the-procedure-for-cleaning-a-washable-ductless-mini-split-filter)
- [What steps should I take to prepare a basement floor before installing hydronic radiant tubing?](https://askdae.com/t/mrtpgh-2/answers/what-steps-should-i-take-to-prepare-a-basement-floor-before-installing-h)
- [Can I convert an old oil furnace to a high-efficiency gas furnace without changing ductwork?](https://askdae.com/t/mrtpgh-2/answers/can-i-convert-an-old-oil-furnace-to-a-high-efficiency-gas-furnace-withou)
- [How long does a full commercial rooftop packaged unit replacement take from crane lift to startup?](https://askdae.com/t/mrtpgh-2/answers/how-long-does-a-full-commercial-rooftop-packaged-unit-replacement-take-f)
- [Average lifespan of a residential ground-source heat pump indoor unit compared to ground loops?](https://askdae.com/t/mrtpgh-2/answers/average-lifespan-of-a-residential-ground-source-heat-pump-indoor-unit-co)