



I'm Chelsey M., the breeder behind Knallhart Kennels located in Iowa. Our passion is rooted in preserving the historical integrity of Newfoundlands, ensuring that each puppy not only meets the physical standards but also possesses the distinctive temperament that makes them ideal companions.

Why did you start breeding?
What makes your program special?
What are the different breed coat colors in your program?
Where do your breeding dogs live?

These dogs are already reserved or have gone home.

Black Collar Female
Female

Light Pink Collar Female
Female

Brown Collar Boy
Male

Dark Pink Collar Female
Female

Gray Collar Boy
Male

Green Collar Female
Female

Orange Collar Female
Female

Seafoam Collar Girl
Female

Purple Collar Female
Female

Green Collar boy
Male

Blue Collar Boy
Male

Yellow Collar Boy
Male

Gray collar boy
Male

Red Collar Boy
Male

Pink Collar Girl
Female

Seafoam Collar Girl
Female

Purple Collar Girl
Female

Purple Collar girl
Female

Brown Collar Boy
Male

Dark blue collar boy
Male

Red White and Blue Collar Boy
Male

Seafoam collar girl
Female

Pink collar girl
Female

Navy blue Collar boy
Male

Yellow collar boy
Male

Orange Stripe Collar Boy
Male

Shark Collar Boy
Male

Gray collar girl
Female

Red Collar Boy
Male

Orange collar boy
Female
Chelsey has been certified by Good Dog's screening team for responsible and trusted breeding practices. When you're ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

"Our Newfoundland puppies come with AKC limited registration, vaccinations, deworming, a certified heart examination at 10 weeks, and lifelong support with training resources. Puppies are priced uniformly, regardless of color, sex, or size. However, older puppies beyond ten weeks may have a slightly higher cost due to the additional training efforts invested in them."
Chelsey may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Chelsey offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Chelsey directly.
You can drive or fly to pick up your puppy from Chelsey.
Meet in Iowa
Club memberships
Chelsey is a member of Newfoundland Club of America.
Certifications & recognitions
Professional Canine Trainer, AKC Canine Good Citizen Evaluator, Puppy Culture Breeder.
Chelsey has been a member of Good Dog for about 4 years
Chelsey was screened for responsible practices and has been a member since 2022.

Knallhart Kennels meets or exceeds our community standards in these areas:

Newfoundland
About Ice
Ice is a male Newfoundland. Carefully selected as a great representative of his breed, Chelsey decided to make him part of their program. Chelsey has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great health testing

Newfoundland
About Simone
Simone is a female Newfoundland over 4 years old. Carefully selected as a great representative of her breed, Chelsey decided to make her part of their program. Chelsey has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great health testing

Newfoundland
About Sofia
Sofia is a female Newfoundland almost 8 years old. Carefully selected as a great representative of her breed, Chelsey decided to make her part of their program. Chelsey has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great health testing

Newfoundland
About Yara
Yara is a female Newfoundland. Carefully selected as a great representative of her breed, Chelsey decided to make her part of their program. Chelsey has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.

Newfoundland
About Iza
Iza is a female Newfoundland. Carefully selected as a great representative of her breed, Chelsey decided to make her part of their program. Chelsey has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Excellent level
Knallhart Kennels reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Newfoundlands.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Cardiac Evaluation (registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
OFA/CHIC DNA Repository, DNA Disease Panel, Cystinuria Type 1A, Newfoundland Type
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.