Skip to content
PRICE DEMOLITION SALE: Hundreds of Job-Crushing Deals. Shop Now >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Final Day

Free Gift Card Details

$100 Order

$10
gift card

$250 Order

$25
gift card

$500 Order

$50
gift card

$1000 Order

$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 11/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.
Print

Fully Modulating Boiler with Outdoor Reset Radiant Made Simple (RMS) Pre-Plumbed Panels, 10,236 BTU, 3 kW, Model# RMS-3-AA

Item# 77513
Top Seller
Fully Modulating Boiler with Outdoor Reset Radiant Made Simple (RMS) Pre-Plumbed Panels, 10,236 BTU, 3 kW, Model# RMS-3-AA

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Fully Modulating Boiler with Outdoor Reset Radiant Made Simple (RMS) Pre-Plumbed Panels, 10,236 BTU, 3 kW, Model# RMS-3-AA

Click or Tap image to Zoom

$3299.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • Compact and lightweight design
  • Full modulation for precise BTU demand output
  • Thermolec TMB electric boiler assembly
  • Aquastat control - adjustable supply water temperature range up to 190°F
  • Outdoor reset control

See full description

Complete Your Solution

  • Fully Modulating Boiler with Outdoor Reset Radiant Made Simple (RMS) Pre-Plumbed Panels, 10,236 BTU, 3 kW, Model# RMS-3-AA
  • Radiant Made Simple Radiant Floor Tubing Kit, Model# 300 Loop Kit
Price for all two:

$3534.98

Frequently Bought Together

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Accessories

  • Warranty

  • Compare

Product Summary

Fully Modulating Boiler with Outdoor Reset Radiant Made Simple(RMS) Pre-Plumbed Panels are professionally engineered, manufactured and pressure-tested. Each panel comes complete with boiler, expansion tank, air scoop, pressure relief valve, 5-port manifold, 3-speed pump and easy-to-follow instructions. Panels are designed around the reliable Thermolec TMB electric boiler with H Stamp. Choose from four boiler sizes and a variety of manifold options. All components are securely attached to a rugged ABS plastic panel, ready to be mounted and connected to your hydronic heating system. Panel size comes in a compact design, measuring 25in.W x 33in.H x 10in.D. RMS Pre-Plumbed Panels are an excellent value and problem-solver. They will enhance the appearance of your installation while decreasing the labor and expense required to complete your radiant project.

What's Included

    (1) Radiant floor heat electric boiler panel

Features + Benefits

  • Compact and lightweight design
  • Full modulation for precise BTU demand output
  • Thermolec TMB electric boiler assembly
  • Aquastat control - adjustable supply water temperature range up to 190°F
  • Outdoor reset control
  • 30 PSI pressure relief valve
  • Circuit breaker (control switch)
  • No venting required

Key Specs

AttributeSpecification

item#

77513

Brand

Radiant Made Simple

Manufacturer's Warranty

2 year limited warranty

Ship Weight

80.0 LB

Product Type

Boiler Panel

Amps

12.5
AttributeSpecification

Hardwired

Yes

Thermal Cutoff Safety Device

Yes

Remote Included

No

Thermostat Included

No

Product Weight

70 lb

Reviews

Questions & Answers

Questions

1–10 of 12 Questions  
Sort by:

  1. Do you offer this same configuration with a gas propane heating system

    1 answer

    1. We do not offer this modulating boiler in a propane gas system.

      Helpful?

  2. What is the connection size for the 5x manifold ports?

    1 answer

    1. The RMS-3-AA supports up to 600 square feet using (2) 1/2" x 300' loops. The RMS-11-AA will support up to 1500 square feet using (5) 1/2" x 300' loops.

      Helpful?

  3. What size wire is recommended to supply power, 25 feet from breakers panel.

    1 answer

    1. 10 gauge copper wire should be used for 240 V, and 14 gauge wire for dedicated circuit for circulator pump.

      Helpful?

  4. What external thermostat is recommended for this unit?

    1 answer

    1. A non programmable external thermostat (model T771) is included.

      Helpful?

  5. Can this boiler be used for hot water cast iron radiators? Or is it just for floor radiant heat?

    1 answer

    1. This is designed and intended for use in floor heat applications only.

      Helpful?

  6. What do you recommend for a small 120 sq ft outbuilding?

    1 answer

    1. This is the proper model to use for up to 300 square feet.

      Helpful?

  7. Doest it matter what type of glycol "antifreeze" is run through this unit

    1 answer

    1. The best product for freeze protection is a Propylene Glycol that contains inhibitors.

      Helpful?

  8. Will this product work on a 208V 3-phase circuit? Thank you.

    1 answer

    1. This system is single phase and requires a 220 volt 20 amp breaker.

      Helpful?

  9. i have seven zones, what kind of unit 1500 sq

    1 answer

    1. This unit is designed for heating up to 300 square feet. The largest system we currently offer is item 77512. It has a 5 port supply manifold that can support up to 5 loop pipes at 300 feet each and it is capable of heating an area up to 1200 square feet.

      Helpful?

  10. Hi there I have a three zone about 500 square-foot I’m wondering what kind of unit to do I need?

    1 answer

    1. These systems do not heat individual zones; individual zones require separate thermostats. This system is capable of heating an area up to 300 square feet. For a system that can heat an area up to 500 square feet, please view item 77514.

      Helpful?

Accessories We Recommend

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.

See All Electric Floor Heaters
Radiant Made Simple Radiant Floor Tubing Kit, Model# 300 Loop Kit
3.0 out of 5 stars. 3 reviews

Radiant Made Simple Radiant Floor Tubing Kit, Model# 300 Loop Kit

Item # 456332

$234.99

Warranty

Manufacturer's Warranty

2 year limited warranty

Recently Viewed Items

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.