Adam Miller

Hey, I’m Adam Miller. After years of crawling through cramped basements fixing water heaters (and discovering some pretty questionable DIY attempts), I figured it was time to share what I’ve learned in a way that doesn’t involve me getting covered in dust. I started this site to help you make sense of the whole tankless water heater thing—whether you’re tired of cold showers or just want to save a few bucks on your energy bill. I like to keep things simple, practical, and if I can throw in a bad joke or two along the way, even better!

How to Flush a Water Heater: A Simple Step-by-Step Guide

by Adam Miller

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How to flush a water heater: Hey, Adam here. Does flushing your water heater sound a bit intimidating? Don’t worry—you’re not alone! Many people think this kind of maintenance requires a pro, but with a little guidance, it’s actually something you can handle on your own. I’ll walk you through the process step by step, so you can get the job done confidently. Project Snapshot Time Needed: 20 minutes to 1 hour (active work), 1 to 2 hours total Skill …

How Does a Tankless Water Heater Work? A Step-by-Step Guide

by Adam Miller

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Hey there Adam here again! As someone who’s been in the tankless water heater game for a while, I get it: making the switch can feel like a big decision. Whether you’re dealing with an aging traditional water heater, looking to save space, or just curious about how a tankless system works, you’re in the right place. I’ll walk you through the basics of how does a tankless water heater work, and help you decide if it’s the right option …

The 5 Best Electric Tankless Water Heater (2025)

by Adam Miller

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Heya! if you’re thinking about switching to an electric tankless water heater, you’re likely in one of two camps: either your old system is on its last legs, or you’re eyeing a more efficient, space-saving solution—maybe even planning an off-grid setup. I’m Adam Miller, and after years of installing everything from bulky gas heaters to compact electric models, I’ve seen why the niche of choosing electric tankless water heaters is gaining ground. For folks wanting a reliable, eco-friendly option …

Rinnai RX180iN Review

by Adam Miller

Hey there, Adam here! In my line of work as a water heater consultant, I often get asked about the latest models on the market. Recently, I was managing a property up in the U.P. that needed an upgrade from an old 50-gallon tank water heater. It felt like the perfect chance to try out a new model, so I went with the Rinnai RX180iN, as it’ll also be a great time to write a Rinnai RX180iN review. With its 10 …

Rheem Electric Tankless Water Heater Troubleshooting Guide

by Adam Miller

Tips for Rheem Electric Tankless Water Heater Troubleshooting If you’re lucky enough to own a Rheem electric tankless water heater, you have the convenience of an endless supply of hot water on demand. However, these appliances are still not immune to occasional issues that can arise from complex systems. But don’t worry – our guide on Rheem electric tankless water heater troubleshooting has you covered, so you don’t need to call a professional! In the following sections, we’ll show you …

Siogreen Tankless Water Heater Review

by Adam Miller

Siogreen Tankless Water Heater Review: Is It Worth The Investment? As part of running Tankless Heater Guides, I’m always diving into tankless water heater brands and learning about what they offer. I recently came across SioGreen tankless water heaters, and here are my thoughts. After doing some research, I was impressed with their patented quartz infrared heating system that eliminates the need for metal heating elements, which are often the cause of failure in traditional electric water heaters. What I …