Wet­backs good in some sit­u­a­tions

Matamata Chronicle - - Winter Warmth -

Wet­backs can be at­tached to wood, pel­let, coal or diesel burn­ers.

They are worth con­sid­er­ing if us­ing a burner for space heat­ing; if you have a re­li­able and cheap source of sus­tain­able fire­wood; or if you live in a lo­ca­tion where other en­ergy sources are ex­pen­sive, lim­ited or in­ter­mit­tent. di­rectly above the heat source.

This may re­quire longer pipe runs to hot wa­ter out­lets.

Some sys­tems may in­cor­po­rate an elec­tric pump to in­crease pres­sure and al­low trans­fer to stor­age cylin­ders lo­cated fur­ther away. prox­im­ity, prefer­ably no more than four me­tres apart, if us­ing a wet­back.

In ad­di­tion only cop­per pipes should be used within a wet­back sys­tem due to the high tem­per­a­tures.

Use cau­tion when cou­pling wet­backs with heat­ing sys­tems (i.e. ra­di­a­tors or un­der­floor).

Wet­backs will gen­er­ally not have a suf­fi­ciently high heat ca­pac­ity to sup­ply heat to a large area thus the elec­tric el­e­ment(s) in the cylin­ders may end up operating more fre­quently than planned.

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