Reservoir Home

11 PM: your water heater fails.
11 AM: your brand-new Reservoir is getting hooked up.

This customer contacted us just before midnight on a Tuesday, and we were onsite 12 hours later with a state-of-the-art heat pump water heater that will last for years.

Ever heard of the "duck curve"? It's the shape of daily electricity demand once solar enters the picture: a steady overnight base, a morning bump, a midday dip while solar covers the load, then a sharp evening peak right as the sun goes down and everyone gets home.

That evening peak is the expensive, strain-heavy part of the day for the grid. But it's also exactly the kind of problem a water heater can help solve — if it's smart enough to store heat during the cheap, clean hours and coast through the peak. We wrote up how that works. Link in the comments.

How a Water Heater Stores Energy Like a Battery | Reservoir A thermal battery stores energy as heat instead of electricity, and your water heater could be one. Learn how predictive heating turns your tank into a tool that saves you money and helps balance the grid.

Old tank out. Reservoir in.

This is what a Reservoir install looks like: our own team, making sure everything's set up right the first time. Just one visit, a few hours, and you'll have hot water that adjusts to how your household actually uses it.

Thinking about making the switch before your current tank makes the decision for you? We're happy to talk through what it would look like at your place.

Once you understand how a water heater works, it’s a lot easier to understand why it eventually fails, and what you can look for to avoid a surprise.

This guide covers:
- What’s inside a water heater
- The different types on the market and how each works
- The specific ways water heaters break down over time
- How we designed Reservoir’s predictive water heater to avoid common failure points

Read now: https://www.reservoirhome.com/knowledge-reservoir/how-water-heaters-work?utm_source=facebook&utm_medium=social&utm_campaign=how-water-heaters-work

A little Reservoir magic.

Our install team are masters at organizing chaos, and leave your basement (or garage, or utility room) better set up for service in the future.

This household went electric, upped their hot water capacity, and are saving money.

Massachusetts has some of the highest energy costs in the country. State and regional rebate programs can help residents switch to more efficient appliances (including Reservoir!).

⬇️ Our guide breaks down exactly what's available this year, and why the humble water heater is a good place to start:

https://www.reservoirhome.com/knowledge-reservoir/massachusetts-energy-rebates-guide-2026

☀️💧⚡ This morning, we're swapping out an old indirect gas water heater for a smart, efficient heat pump water heater—no more running the boiler in the summer!

These systems cut energy use way down, saving money and fuel.

If you don't want your boiler running during the next heat wave, give us a shout.