The vessels are connected at top rated and base by pipes and The full system is stuffed with an inert gas which include argon.[seventy two] Warmth exchangers transfer warmth particularly speedily, perfect for mains strain showers and quickly submitting baths. Large temperature thermal stores like the ELECTRAflow and ELECTRAstore models https://www.gledhill.net/products/thermal-storage/boilermate-ov-pre-plumbed/