SKU: 1215355655

Modine PDP400A Unit Heater

Sale price$1807.65 Regular price$2008.50
Save 10%

Pay in installments of $502.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Modine PDP400A Unit HeaterFreight Savings For large heater orders over $10,000, freight savings are available by contacting our sales team at 1 888 281 9337. Model PDP Power Vented Unit Heaters: The PDP (propeller) High Efficiency II gas fired unit heaters feature a blower powered vent exhaust. This vent forces heater exhaust fumes outside of the heated structure, and allows the heater to be vented vertically or horizontally. Horizontal venting prevents heat from escaping out

Freight Savings
For large heater orders over $10,000, freight savings are available by contacting our sales team at 1-888-281-9337.

Model PDP Power-Vented Unit Heaters: The PDP (propeller) High Efficiency II gas-fired unit heaters feature a blower-powered vent exhaust. This vent forces heater exhaust fumes outside of the heated structure, and allows the heater to be vented vertically or horizontally. Horizontal venting prevents heat from escaping out of the vent pipe when the heater is not running, which is especially important in greenhouses.

Standard Features

  • 80% thermal efficiency, maximizing seasonal efficiency through the use of a collector box and power exhauster.
  • Power exhaust that can be rotated 180 degrees.
  • 100% shut-off, intermittent pilot-ignition system with continuous retry.
  • Field convertable from natural to propane gas.
  • Safety pressure-switch to assure safe venting conditions.
  • Designed to use the smallest diameter vent pipe possible.
  • "Wing" screws so that the bottom pan can be dropped without a screwdriver.
  • Certified to 0.5" W.C. external static pressure.
  • A level hanging mechanism for easy field adjustments.

Dimensions and Diagrams

Dimensions, Diagrams, and Specifications. (PDF)

HD-HDB-PDP-BDP_Flier (PDF)

Performance Specifications

Select desired heater from the drop-down list at the top right of the page.
Performance information below.

Model Input BTUH Output BTUH Vent Size Weight
PDP150A 145,000 120,000 5" 174
PDP175A 175,000 140,000 5" 238
PDP200A 200,000 160,000 5" 238
PDP250A 250,000 200,000 6" 268
PDP300A 300,000 240,000 6" 366
PDP350A 350,000 280,000 7" 366
PDP400A 400,000 320,000 7" 441

Heater Warranty and Return Policy

It is the customer's responsibility to carefully inspect heaters for damage before accepting delivery since heaters are usually not returnable once delivery is accepted. Obviously damaged heaters should be refused and Greenhouse Megastore customer service contacted to make arrangements for a replacement unit. Once delivery is accepted Greenhouse Megastore will gladly provide replacement parts under the manufacturer's warranty to repair damaged or defective heaters; however this warranty does not include any labor costs associated with installing these parts. Warranty issues should be diagnosed by a certified HVAC technician since parts deemed not to be defective by the manufacturer are not available for credit back to the customer. Specific warranty policies vary by manufacturer but typically cover replacement parts as indicated above up to one year after purchase. Please contact Greenhouse Megastore customer service if you have any questions about the warranty for your specific heater.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1215355655

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kellie Scott
Battle Creek, US
★★★★★ 5
Cute, Affordable, Dogs Love
Color: Purple+Green
These are super cute. Both of our girls love them. Got them in January and we still have both of them as faves in May. That’s pretty impressive with the amount of toys they rip through. They 100% can easily be destroyed. Our dogs have preferred keeping them. They just enjoy these toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
B
Verified Purchase
Bonham
Lake Worth, US
★★★★★ 3
So-so...
Color: Blue+Orange
50lb German Shep mix chewed through the head within a couple days and pulled the squeeker out. Not horrible, but not as durable as they seem to imply.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
V
Verified Purchase
Valerie P.
Pawtucket, US
★★★★★ 5
Long lasting, well loved
Color: Purple+Green
18 months later still intact and favorites!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Verified Purchase
Dana Fischer
Draper, US
★★★★★ 5
Great quality!!
Color: Blue+Purple
These toys are great! My dog chews and tosses and loves these! She's an aggressive chewer, and they have held up through it all! Very well made toy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Great buy, finally a big soft toy, and so cute
Color: Green
This octopus toy is so adorable, I’m truly so impressed with the size finally a big toy for a big dog. She loves it! It squeaks, soft, made great. Worth it! Love it! Fun, durable n chewability just for play materials soft n durable. It’s a sea foam green color and creme beautiful neutral color
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026

recommand products