ASHP are claimed to get healthier than fossil-fuelled heating such as gas heaters by sustaining a far more even temperature and keeping away from damaging fumes risk. An air-to air method is usually intended to transfer heat in either course, to heat the interior of the developing in Winter season https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/