About TanklessMath

TanklessMath is a Brand of One site published by Charland & Co., a sole proprietorship of Dominic Charland based in Quebec, Canada. You can reach us at hello@charlandandco.com.

We build simple calculators and plain-language guides to help homeowners plan tankless water heater sizing (GPM, temperature rise, BTU, electric amps), costs and maintenance. Results are planning estimates — a licensed installer and local code have the final say.

How we make content

Some drafts may be AI-assisted; reviewed before publishing.

How we earn

We may earn affiliate commissions and ad revenue. See our disclosure.