• Home
  • Rainwater Harvesting
  • Water Purification
  • About
  • More
    • Home
    • Rainwater Harvesting
    • Water Purification
    • About
  • Home
  • Rainwater Harvesting
  • Water Purification
  • About

Rain Barrel vs Rain Harvesting System

A rain barrel catches water and holds it. A rain harvesting system is built so you can use that water on the yard.

Sun House System LLC designs and installs rain harvesting systems for Denver-area and Front Range homes through our Rain Harvest Solutions division. When the design calls for it, stored rainwater can run sprinklers. On Advanced and Elite packages, watering can run from an app or on a schedule you set. Basic includes a pump and hose spigot, with no app and no zone control.

Rain barrel in a Colorado side yard

What a rain barrel does

A barrel sits at the downspout and stores water. You fill it when it rains. You draw from a spigot or a watering can.

That setup fits many homes under Colorado's two-barrel, 110-gallon outdoor rule. A barrel alone does not pump to irrigation zones. It does not run on a timer.

What a rain harvesting system does

A rain harvesting system still collects and stores roof water. It also finishes the job for how you water the yard.

We plan gutters, downspouts, overflow, and tank or cistern placement for the house and for Colorado freeze seasons. Where the site needs it, we add debris diversion and screens so less leaf litter and grit end up in storage.


When the design calls for it, stored rainwater can run sprinklers and irrigation on the property, not only a handheld hose.

Outdoor use on the same property under the two-barrel, 110-gallon rule is the common city-water package. Larger storage follows the well-based permit path when that applies. Full detail is on our CO Rain Law page

Same roof. Water you can put to work on the yard.

Filter box on a rainwater system

Automated watering on Advanced and Elite

On Advanced and Elite packages, the system can run fully automated. You control watering from an app. Or you set a schedule for the days and times you choose, and the system runs that schedule.

Automation is for outdoor irrigation from stored rainwater. It is not indoor plumbing. It is not drinking water.

Elite also includes zone control. Zone control is Elite only.

Basic includes a pump and hose spigot, with no app and no zone control, at $1,799.

Lawn sprinkler watering grass

What a free site assessment covers

We look at roof area, where water can sit, how you irrigate today, and what Colorado allows on your property. Then we show whether a barrel-scale setup or a full rain harvesting system fits, and which package fits. Basic includes a pump and hose spigot. Advanced and Elite add app or scheduled automation. Zone control is Elite only. That happens before any install work starts.

Ready to see what fits your house?

Free site assessment. Call or text (720) 239-2882. Or email Hello@sunhousesystem.com.

Sun House System LLC, Rain Harvest Solutions division. Denver-area and Front Range residential rainwater installs.

Call (720) 239-2882

Frequently Asked Questions

Please reach us at Hello@sunhousesystem.com if you cannot find an answer to your question.

A barrel stores water at the downspout. A rain harvesting system is built so that water can serve the yard. That means debris diversion and screens when needed, and delivery to irrigation or sprinklers when the design calls for it. Advanced and Elite packages also add automation by app or schedule. Zone control is Elite only. Basic includes a pump and hose spigot, with no app and no zone control.


Yes, when the design calls for it. We include the pump and controls as needed and size that on the site visit. Zone control is Elite only.


On Advanced and Elite packages, watering can run from an app or on a schedule you set. Zone control is Elite only. Basic includes a pump and hose spigot, with no app and no zone control.


No. Roof-collected water stays for outdoor watering under the usual Colorado residential rules.


Copyright © 2026 Sun House System LLC - All Rights Reserved.

Call us: (720) 239-2882 | Denver, CO

Powered by

  • CO Rain Law
  • Privacy Policy
  • Terms and Conditions
  • Barrel vs Cistern
  • Rainwater Littleton

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

DeclineAccept