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Tankless Water Heater - Rinnai EX08CN Natural Gas Direct Vent Wall Furnace

Rinnai - EX08DTN - Natural Gas Direct Vent Wall Furnace

by Rinnai
SKU EX08DTN
$ 1,322.37 - $ 1,322.37
$ 1,322.37
$ 1,322.37 - $ 1,322.37
$ 1,322.37

Rinnai EX08DTN Direct Vent Wall Furnace – Natural Gas (NG), Beige

The Rinnai EX08DTN provides compact, efficient Natural Gas heating in a quiet wall-mounted design built for small rooms and tight spaces. This Beige/Tan cabinet version blends easily with warm, neutral décor while offering the same reliable EX-series performance. With sealed combustion and direct-vent installation, it keeps indoor air clean and delivers steady comfort without the need for ductwork.

Key Benefits

  • Natural Gas heating designed for small rooms, offices, and insulated spaces.
  • Warm beige cabinet finish blends smoothly with traditional or neutral interior styles.
  • Sealed direct-vent system draws combustion air from outdoors, preserving indoor air quality.
  • Ultra-quiet operation ideal for bedrooms, nurseries, studies, or work areas.
  • Digital thermostat for precise and consistent temperature control.
  • Cool-touch cabinet improves safety for homes with children or pets.
  • No ductwork required—simple exterior wall installation.

Specifications

  • Model: EX08DTN
  • Fuel Type: Natural Gas (NG)
  • Finish: Beige / Tan
  • BTU Range: ~3,000 – 8,000 BTU/h (NG)
  • Efficiency: High-efficiency sealed combustion
  • Venting: Sealed direct vent
  • Controls: Integrated digital thermostat
  • Safety: Cool-touch cabinet, child lock, oxygen depletion protection
  • Warranty: 10-year heat exchanger, 5-year parts, 2-year labor

Common Uses

  • Small bedrooms, offices, workshops, or insulated rooms
  • Cottages, studios, or compact living areas using Natural Gas
  • Home additions or remodels without ductwork
  • Zoned heating for small, closed-off spaces

FAQ

Is the EX08DTN the same as the EX08DTWN?
Yes—performance and operation are the same. The difference is the cabinet color:
• EX08DTN = Natural Gas, Beige finish
• EX08DTWN = Natural Gas, White finish

Is a vent kit required?
Yes—this model uses a sealed direct-vent system for clean, safe combustion.

The “A” vent kit is included with the EX Series appliance

A Vent Kit No. FOT-151. Fits Walls  4 1/2 - 9 1/2 in (115 - 240 mm)

What size room is it ideal for?
Small rooms or well-insulated areas where efficient, quiet heating is needed.

Comparison Chart

Model Fuel BTU Range (Min–Max) Mount / Vent Dimensions (W×H×D) Notes
EX08DT (NG/LP) NG or LP 3,000–8,000 BTU/h Surface-mounted, direct vent 18.3″ × 27.4″ × 10.1″ Compact zone heater; thermostat compatible. 
EX11DT (NG/LP) NG or LP NG: 5,500–11,000 • LP: 5,700–11,000 BTU/h Surface-mounted, direct vent 18.3″ × 27.4″ × 10.1″ Small/medium rooms; same cabinet as EX08. 
EX17DT (NG/LP) NG or LP 8,200–16,700 BTU/h Surface-mounted, direct vent 29.9″ × 22.9″ × 10.1″ Great mid-size step-up from EX11. 
EX22DT (NG/LP) NG or LP NG: 8,200–21,500 • LP: 8,200–20,700 BTU/h Surface-mounted, direct vent 29.9″ × 22.9″ × 10.1″ Most popular size; thermostat/Wi-Fi interface ready. 
EX38DT (NG/LP) NG or LP NG: 13,200–38,400 • LP: 13,200–36,500 BTU/h Surface-mounted, direct vent 36.6″ × 26.4″ × 13″ Largest output; approved to 10,200 ft. 

Specs vary by fuel and revision; always verify against the current Rinnai spec sheet for your exact model.

Compact NG Heating With a Warm Neutral Finish

The Rinnai EX08DTN offers dependable Natural Gas heating in a compact footprint with a soft beige exterior—perfect for small spaces that need safe, efficient comfort.

Fuel Type:
Natural Gas

BTU:
8000

Voltage:
120v

Gas Connection:
1/2"

Wattage:
41

Air Flow Capacity (CFM):
78.6

Height (Inches):
27.4"

Width (Inches):
18.3"

Depth (Inches):
10.1"

Color:
Beige

Warranty:
10 Year Heat Exchanger/ 5 Year Parts/ 2 Year Labor

Height (Inches):
27.4"

Width (Inches):
18.3"

Depth (Inches):
10.1"

View Spec Sheet (PDF)
View Install Manual (PDF)

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