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Water heaters

The right water heater is a sizing problem, not a product problem. We calculate your peak simultaneous demand, the morning where two showers and the dishwasher all run, and size to that.

What we carry

Water heaters, specified with the room

Tankless

Electric tankless

Stiebel Eltron whole-home tankless, endless hot water, wall-mounted, no tank to leak, if your electrical service can carry it.

Point

Point-of-use

A small under-sink unit for a far bathroom or a bar sink so you are not waiting 45 seconds for hot water.

Hybrid

Heat-pump (hybrid)

The most efficient tank option, pulls heat from the air, cuts the water-heating bill by more than half, wants a semi-conditioned space.

Size

Peak demand sizing

Run the water heater calculator, fixtures and household size to the capacity or flow rate you need.

Electric

All-electric ready

Sizing and panel-load planning for an all-electric or solar house, no gas or propane line.

Install

With your remodel

Swapped or relocated while the mechanical room or bath is already open, the cheap time to do it.

Lines on the floor

Brands

Stiebel Eltron
Rheem
AO Smith
Bosch
Bradford White

Full brand directory

Tankless or a tank?

Electric tankless gives endless hot water and no tank to leak or lose standby heat, but it draws a lot of amps, your panel and service have to support it. A hybrid heat-pump tank is the most efficient tank option and cuts the water-heating bill by more than half. We size to your peak demand either way.

What size do I need?

It is about peak simultaneous demand, not house size, the morning where two showers and the dishwasher run at once. Run the water heater calculator: fixtures plus household size gives the tank gallons or the tankless flow rate.

Can you do an all-electric house?

Yes, we plan the panel load for a tankless or heat-pump water heater alongside an induction range, heat pumps and EV charging, so nothing trips when it all runs together.

Shop online

Water heaters

Order online with secure checkout, or have our crews install it with the rest of the project.

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Start here

Book a consult

Tell us the room, a rough budget range and when you'd like to start. We'll come back with next steps and a realistic timeline, no pressure, no mystery pricing.

(603) 795-0100  ·  toll-free 844-438-7674 sales@poshhaus.com 104 Emerald St, Keene, NH 03431 Mon–Fri 10–6 · Sat 10–3 · Sun closed

We reply within one business day. Your details go straight to our team at sales@poshhaus.com.